Condition

Folliculitis

Folliculitis is inflammation of hair follicles. It shows up as small bumps and pus spots, each one sitting at a hair, and it is often itchy or tender. Most folliculitis is mild and settles once whatever is irritating or infecting the follicles is dealt with.
Dr. Schwarz, MD · Board-certified dermatologistLast reviewed September 8, 2026

Start here

Most people who come to see me about folliculitis think they have acne somewhere acne does not usually go - the thighs, the buttocks, the upper arms, the beard area. Every bump sits on a hair and there are no blackheads or whiteheads anywhere, and that one observation changes the treatment.

Most folliculitis is not an infection you caught somewhere; far more of it comes from shaving, friction and damp clothes, so years of coming and going usually means a habit rather than a bug.

Do not scrub it or squeeze it, and leave steroid creams alone unless a doctor chose one for you - steroids can make follicular infections spread rather than settle.

— Dr. Schwarz, Board Certified Dermatologist

Key Facts

−
How commonVery common - one of the most frequent causes of bumpy, itchy skin on the body
Who gets itAnyone with hair follicles. More likely with shaving or waxing, heavy sweating, tight or occlusive clothing, long antibiotic courses, and diabetes
Curable or managedIndividual episodes clear completely. Some people are prone to it and manage it over the long term
Prescription neededOften not. Mild cases settle with changes to shaving and washing, plus an antiseptic or antifungal wash
Time to improveMild cases in about 7 to 10 days. Deep, widespread or recurrent folliculitis takes longer

What It Is

−

A hair follicle is the small tube a hair grows out of, with an oil gland attached. Folliculitis means that tube is inflamed. Every bump is centered on a hair, which is the most reliable way to recognize it.

Superficial folliculitis is the common form - small red, brown or skin-colored bumps, some with a pinpoint of pus, usually itchy rather than painful. It clears without scarring. Deep folliculitis goes further down and produces a boil, a tender swollen lump also called a furuncle; several joined-up boils are a carbuncle. Deep folliculitis can scar and often needs treatment.

The name changes with the cause. Bacterial folliculitis is the most common, usually Staphylococcus aureus, which lives harmlessly on many people's skin until it gets into a damaged follicle. Hot tub folliculitis comes from Pseudomonas aeruginosa in a poorly disinfected pool or hot tub, making itchy bumps a day or two later where a swimsuit held water against the skin. Malassezia folliculitis, widely called fungal acne, comes from a yeast that lives on everyone and overgrows in warm, oily, covered skin. Pseudofolliculitis barbae, or razor bumps, is not an infection at all - it is the reaction to a shaved hair curling back into the skin. Some medicines cause folliculitis too, including oral steroids, lithium and the EGFR inhibitors used in cancer treatment.

Folliculitis gets mistaken for acne constantly. Acne has blackheads and whiteheads, spots of several sizes, sits mainly on the face, chest and upper back, and is not usually itchy. Folliculitis has no blackheads, bumps all much the same size, follows hair and friction rather than oil glands, and itches. Keratosis pilaris, the rough goosebump texture on the upper arms and thighs, is another look-alike, but those bumps are dry plugs rather than inflammation.

Symptoms

−
Small pus bumps at hairs

Superficial Bacterial

Small red bumps and pustules sitting exactly on hair openings, often on the thighs, buttocks, chest or beard area. Each spot has a hair in the middle if you look closely. Shaving, sweat and tight clothing keep it going.
Itchy uniform bumps

Fungal

Itchy bumps that are all the same size and shape, usually on the upper back, chest and shoulders, and often worse after sweating. It is caused by yeast rather than bacteria, so antibiotics can make it worse. This overlaps with fungal acne.
Painful lumps

Deep or Boil-Like

A follicle infection that spreads deeper into a tender, swollen lump that may drain pus. It can leave a mark or a small scar. Repeated boils in the same area are worth investigating rather than treating one at a time.

How It Looks by Skin Tone

−
The back of the neck and upper back on fair skin, covered in small red bumps of even size, each one at a hair opening, several with a pinpoint of yellow-white pus.The back of the neck and upper back on medium olive skin, with small dull pink-brown bumps of even size, each one at a hair opening, a few with a pale point of pus.The back of the neck and upper back on brown skin, with small bumps of even size that read brown and violet rather than red, each one sitting at a hair opening.The back of the neck and upper back on deep brown skin, with bumps of even size at the hair openings that read dark brown, and a few flat darker marks beside them where earlier bumps have healed.
LightMediumBrownDeep

On deeper skin tones, folliculitis bumps are often brown, violet or skin-colored rather than red, so redness is the wrong thing to look for. The dependable signs are bumps sitting on hairs, their even size, and the itch.

The mark left behind matters more here than the bump. Folliculitis heals into flat dark spots - post-inflammatory hyperpigmentation - which can take many months to fade, long after the folliculitis is gone. So treat early and do not pick; a squeezed spot leaves a mark that lasts far longer. Two patterns are much more common in people with tightly coiled hair. Pseudofolliculitis barbae, or razor bumps, happens when a curved hair shaved close curls back into the skin and inflames it, with no infection involved. It hits the beard and neck most, and treatment is about how the hair is removed, not antibiotics. Acne keloidalis nuchae is a related, more serious pattern at the back of the neck and lower scalp, where bumps become firm, raised and permanent and hair is lost. Early treatment works far better than waiting, so get it looked at. Deeper folliculitis on the chest, shoulders, jawline and nape carries a higher risk of raised keloid scars on deeper skin tones - another reason not to squeeze, and to have persistent bumps seen rather than treated at home indefinitely.

Where It Shows Up

−
Front view of a head with red marks along the beard area of the jaw and chin and down both sides of the front of the neck.
Beard and neck
Shaving sites come first, and the beard and front of the neck are the worst of them. Bumps here are often mistaken for acne. It does not appear on the palms or the soles, because there are no follicles there.
Front view of a whole body with red marks in both armpits, across the groin and bikini line and down both thighs and shins.
Armpits, bikini line and legs
The other shaving and waxing sites. Heat, damp and friction do the rest, which is why it flares after a hot tub, a long day in gym clothes, or a fresh shave.
Back view of a whole body with red marks across the upper back and shoulders, on both buttocks and down both thighs.
Upper back, buttocks and thighs
Uniform, itchy bumps of the same size on the chest, upper back and shoulders are more often the yeast kind, which needs antifungal treatment rather than antibiotics. The buttocks, thighs and lower back are friction and sweat sites.

What Happens in the Skin

−

This is what is going wrong under the skin, in the order it happens. Click a step to see it.

How Folliculitis happens
Skin basics
BARRIEREPIDERMISDERMISPOREOILGLAND0A NORMAL HAIR FOLLICLE1THE FOLLICLE IS DAMAGED2WARMTH, SWEAT AND OCCLUSION3ORGANISMS MULTIPLY INSIDE IT4THE INFLAMED BUMP FORMS

A hair follicle is a small tube with a hair growing out of it and an oil gland attached to the side. While the opening is undamaged, oil travels up and out and the skin around it stays dry and cool. The bacteria and yeast that live on everyone's skin stay on the surface, with no way in.

A razor, waxing, plucking, or friction from clothing or equipment injures the opening of the follicle, or a heavy oil or occlusive product blocks it. This first step is the one most cases are actually about.

Sweat trapped under tight or non-breathable fabric keeps the damaged opening warm and soft. That is the condition organisms need, and it is why damp workout clothes bring on a crop so reliably.

Organisms already living harmlessly on the skin move into the damaged follicle and multiply. Usually that is the bacterium Staphylococcus aureus, sometimes the yeast Malassezia, occasionally Pseudomonas from poorly disinfected water. Which one it is decides the whole treatment.

The immune system reacts to what is growing in the follicle, and that reaction is the bump, the pus and the itch. Almost everything on the lists below is pushing on this step, from either end.

The outer film of dead cells and oil. It holds water in and keeps irritants out, and it is thinner than a sheet of paper. Almost every dry, itchy, stinging skin problem starts here.

The outer layer, and the only one anything in a jar reaches. It renews itself constantly: a cell made at the bottom takes about a month to reach the surface and flake off. Most of what a skincare product does, it does here.

The living layer underneath, holding the blood vessels, the nerves and the collagen. It is where lasting change happens and it is hard to reach: most of what is sold for the skin never gets this far.

Three things usually happen, in order. First the follicle is damaged or blocked - by a razor, by friction from clothing or equipment, by waxing or plucking, by heavy oils and occlusive products, or by sweat trapped under something that does not breathe. Second, organisms already on the skin multiply inside it: usually Staphylococcus aureus, sometimes Malassezia yeast, occasionally Pseudomonas from water that was not properly disinfected. Third, the immune system reacts, and that reaction is the bump, the pus and the itch.

Not every case involves an organism. Razor bumps are purely mechanical - a shaved hair with a curl re-enters the skin and the body treats it as foreign. Some folliculitis is a reaction to a medicine. Occlusive folliculitis from tape, casts, bandages or thick greasy products is blockage plus moisture. In people with a weakened immune system there is a specific itchy type, eosinophilic folliculitis, driven by immune reaction rather than infection.

This is why the same-looking rash can need three completely different treatments. An antibacterial does nothing for yeast folliculitis, an antifungal nothing for razor bumps, and neither helps if the friction continues every day.

Risk Factors

−

Folliculitis is about follicle damage, moisture and opportunity, not cleanliness. Washing harder usually makes it worse.

Habits & products
Shaving, waxing and plucking
The most common trigger. Close shaving, dull blades, against the grain and dry shaving damage the follicle opening.
Habits & products
Heavy oils, pomades and occlusive products
Especially along the hairline, the back, and anywhere a product goes on and is covered.
Environment & work
Heavy sweating
Trapped sweat softens the follicle opening and lets organisms multiply. Sport, heat and physical work raise the risk.
Environment & work
Tight or non-breathable clothing
Leggings, cycling shorts, uniforms and anything worn damp for hours make the warm, closed conditions it needs.
Environment & work
Friction and pressure
Backpack straps, sports padding, long sitting, equipment that rubs the same patch.
Environment & work
Poorly maintained hot tubs and pools
Undisinfected water carries Pseudomonas, which causes itchy folliculitis a day or two after.
Medicines
Long courses of oral antibiotics
They cut skin bacteria, letting Malassezia yeast overgrow into a stubborn, itchy folliculitis like acne.
Medicines
Oral or strong topical steroids
They suppress local immunity and bring on a sudden crop of uniform bumps.
Medicines
Certain medicines
Lithium, some anti-seizure medicines and the EGFR inhibitors used in cancer treatment. Never stop one on your own - ask your doctor.
Other health conditions
Diabetes and a weakened immune system
Both make bacterial folliculitis more frequent, deeper and more likely to recur.
Other health conditions
Carrying Staphylococcus aureus
In the nose or skin folds. Long-term carriers get boils again and again.

Course

−

Most folliculitis is short-lived. The pattern below is a typical superficial bacterial case. Folliculitis returning to the same place month after month points at an ongoing cause - shaving method, friction, occlusion, a yeast rather than a bacterium, or a Staphylococcus aureus reservoir, worth investigating rather than re-treating.

Days 1 to 2Starting
The bumps arrive as a crop

Small itchy or slightly tender bumps appear, each at a hair, some with a pinpoint of pus. They arrive together, not one at a time.

Days 3 to 7Peak
The worst of it

The bumps are at their most obvious and itchiest. Pus spots may break open and crust.

Days 7 to 10Settling
The itch fades

With gentle care and the trigger gone, the bumps flatten and the itch fades. Superficial folliculitis leaves no scar.

Weeks 2 to 12Marks
Flat marks can linger

Flat pink, brown or gray marks can stay where the bumps were, especially on deeper skin tones. Not infection; they fade over months.

If it goes deeperBoils
A tender lump instead of a bump

A deeper infected follicle makes a tender, swollen lump that comes to a head over days. These often need draining or oral antibiotics, and can scar.

What Makes It Better & Worse

−

Folliculitis is four problems at once - follicle damage, warmth and sweat, organisms multiplying, inflammation. It recurs when it is a step-one or step-two problem, not a treatment problem.

What is driving yours?

FATPOREOILGLANDBARRIEREPIDERMISDERMIS

A razor, waxing, plucking, or friction from clothing or equipment injures the opening of the follicle, or a heavy oil or occlusive product blocks it. This first step is the one most cases are actually about.

Sweat trapped under tight or non-breathable fabric keeps the damaged opening warm and soft. That is the condition organisms need, and it is why damp workout clothes bring on a crop so reliably.

Organisms already living harmlessly on the skin move into the damaged follicle and multiply. Usually that is the bacterium Staphylococcus aureus, sometimes the yeast Malassezia, occasionally Pseudomonas from poorly disinfected water. Which one it is decides the whole treatment.

The immune system reacts to what is growing in the follicle, and that reaction is the bump, the pus and the itch. Almost everything on the lists below is pushing on this step, from either end.

What helps

  • Change how you shave Fresh single blade, with the grain, with gel, days off when sore.
  • A gentle cleanser and moisturizer An intact barrier means fewer inflamed follicles.

What makes it worse

  • Close shaving with a dull razor Cutting below the surface damages the follicle.
  • Shaving against the grain Stretching the skin does the same.
  • Dry shaving More drag, more nicks, more inflamed follicles.
  • Squeezing and picking Pushes infection deeper, turning a spot into a boil.
  • Scrubbing and exfoliating Damages the follicle openings and the barrier.

What helps

  • Shower and change after sweating The most effective habit for trunk, buttocks and thighs.
  • Loose clothing over the area Remove the occlusion and mild folliculitis often settles.

What makes it worse

  • Staying in damp workout clothes A reliable way to bring on a crop.
  • Tight, non-breathable fabrics Trap heat and sweat over the follicles.
  • Heavy oils and pomades Especially under clothing or a hat.

What helps

  • Benzoyl peroxide wash Reduces skin bacteria, and it bleaches fabric.
  • An antiseptic wash Chlorhexidine a few times a week lowers bacteria.
  • An antifungal shampoo as a body wash The standard approach for Malassezia yeast.
  • Prescription treatment when needed The wrong class is a common reason for failure.
  • Deal with recurrence properly A swab, a look at shaving and clothing, sometimes clearing Staph carriage.

What makes it worse

  • Poorly maintained hot tubs and pools Weak disinfection lets Pseudomonas survive.
  • Long courses of oral antibiotics They let Malassezia yeast overgrow.
  • Strong steroid creams The infection carries on underneath.
  • Sharing razors and towels Moves Staphylococcus aureus around.

What helps

  • Warm compresses on a tender lump Help a boil come to a head and drain.

How These Treatments Work

−

Treatments for Folliculitis do not all work in the same place. Tap one to see where it acts.

Pick a treatment
Skin basics
BARRIEREPIDERMISDERMISPOREOILGLANDKILLS BACTERIAKILLS BACTERIAREMOVES THE TRIGGERHELPS IT DRAIN

Lowers the bacteria growing inside the follicle, which is what the redness and soreness are reacting to.

The same target, reached from the inside, when the spots are deep or spread over a large area.

Rubbing, damp clothing and occlusion are what open the follicle to bacteria in the first place.

This kills nothing. It softens the bump so the body can clear it faster.

The outer film of dead cells and oil. It holds water in and keeps irritants out, and it is thinner than a sheet of paper. Almost every dry, itchy, stinging skin problem starts here.

The outer layer, and the only one anything in a jar reaches. It renews itself constantly: a cell made at the bottom takes about a month to reach the surface and flake off. Most of what a skincare product does, it does here.

The living layer underneath, holding the blood vessels, the nerves and the collagen. It is where lasting change happens and it is hard to reach: most of what is sold for the skin never gets this far.

Over-the-Counter Products

−

Everything here you can buy without seeing anyone.

Three acne wash tubes on white: Differin Deep Cleanser, CeraVe Acne Foaming Cream Cleanser and PanOxyl
Benzoyl Peroxide wash
Moderate evidence
A 4 to 10 percent wash lathered on in the shower and left for a minute before rinsing, for the bacterial kind on the thighs, buttocks, chest and back. It lowers the bacteria on the skin without an antibiotic, which is why it also works as a maintenance measure for people who keep getting crops. It bleaches towels, sheets and colored clothing, so use white ones.
Chlorhexidine wash
Chlorhexidine wash
Moderate evidence
An antiseptic wash used two or three times a week over the affected area, and a good option for someone whose bumps keep coming back in the same place. It lowers the bacterial load on the skin rather than treating an established infection. Keep it away from the eyes and ears, and stop if it stings or dries the skin, since damaged skin is the problem you started with.
16:9 hero for Ketoconazole. Never cropped: the tone strip and the corner logo depend on the full frame.
Ketoconazole shampoo as a wash
Moderate evidence
The standard first move for the yeast kind: itchy, uniform bumps on the chest, back and shoulders, often worse after a course of antibiotics. Use the shampoo as a body wash a few times a week and leave it on for several minutes before rinsing. It does nothing for bacterial folliculitis or razor bumps, and yeast folliculitis tends to come back, so many people keep using it once a week.
Warm compresses
Warm compresses
Moderate evidence
A clean warm flannel held on a tender lump for ten minutes a few times a day helps a boil come to a head and drain on its own. It is the right thing to do instead of squeezing, which pushes the infection deeper. If the lump is getting bigger, more painful, or the redness is spreading, it needs draining properly rather than more compresses.
Paula's Choice 2% BHA exfoliant, La Roche-Posay Effaclar cleanser and a CeraVe psoriasis cream pumpLabeled cutaway diagram of a single skin pore, headed Salicylic Acid. The epidermis is a brick-textured band across the top and the dermis is pink below it, with a yellow oil gland at the base of the pore and a small cluster of bacteria inside it. A single dark navy callout line points into the top of the pore: decreases dead cells in pore. There are no other callouts, so the drawing shows one effect where the other ingredient diagrams show two or three.
Limited evidence
A leave-on 2 percent lotion or pad on the beard, neck or bikini line, where the problem is hairs curling back into the skin rather than an infection. It keeps the follicle opening clear so fewer hairs get trapped, and it is used between shaves rather than on raw skin. It will not touch a bacterial or yeast folliculitis, and on already inflamed skin it stings and can make things worse.
Five dark glass tea tree essential oil bottles with glass droppers and one green box on white16:9 hero for Tea Tree Oil. Never cropped: the tone strip and the corner logo depend on the full frame.
Weak evidence
It does have some activity against bacteria and yeast in the laboratory, which is why it appears in so many folliculitis remedies. There are almost no proper trials of it in folliculitis, and undiluted tea tree oil is a common cause of allergic contact dermatitis, which produces an itchy rash on top of the one you were treating. A benzoyl peroxide or antifungal wash is the better use of the same shower.
A plain white ointment tube lying on its side, labeled Hydrocortisone with a blue swoosh16:9 hero for Hydrocortisone. Never cropped: the tone strip and the corner logo depend on the full frame.
Weak evidence
It is the obvious thing to reach for because the bumps itch, and it is usually the wrong one. Steroid cream quietens the itch for a few days while the infection in the follicles carries on underneath, and the rash that comes back is often more widespread. It also changes how things look, which makes the diagnosis harder afterward. Cool compresses and a medicated wash are the safer starting point.

Prescriptions

−

These need a prescription.

16:9 hero for Mupirocin. Never cropped: the tone strip and the corner logo depend on the full frame.Diagram: how Mupirocin works in the skin
Moderate evidence
An antibiotic ointment for a small, clearly bacterial patch, dabbed on the spots two or three times a day for about a week. It works well when the area is limited and the cause is genuinely bacteria. It does nothing for yeast folliculitis or razor bumps, and using it on and off for months is how resistance builds, so it is a short course rather than a standby.
A white metal tube lying at an angle on a white background, white ribbed cap to the left, labeled Clindamycin in black lettering with a teal swoosh curving beneath the word.Diagram: how Clindamycin works in the skin
Moderate evidence
A lotion or solution for bacterial folliculitis spread over a wider area than an ointment can cover, such as the beard or the back. It is usually paired with a benzoyl peroxide wash, which both improves it and reduces resistance. It is not the answer if the same patch keeps returning, because that is a shaving, friction or occlusion problem rather than an antibiotic one.
A white cream tube on a white background, with a plain white label reading Antibiotic Ointment and a blue swoosh beneath it.
Clearing Staph from the nose
Moderate evidence
Some people carry Staphylococcus aureus in the nostrils or skin folds, which is one reason boils keep returning to the same person. A course of antibiotic ointment inside the nostrils, together with antiseptic washes and hot washing of towels and bedding, can reduce that. It is used for repeated boils rather than for a single episode, and it does not always hold, so household measures matter alongside it.
An amber prescription bottle lying on its side on a white background with a plain white label reading Cephalexin, and six small round white tablets spilled out in front of it.
Cephalexin
Strong evidence
The usual first antibiotic tablet for bacterial folliculitis that is deep, spreading or too widespread for a cream, and for boils with surrounding redness. A course is normally about seven days. It has no effect on yeast folliculitis or razor bumps, and if the same area keeps flaring after each course, the cause is still there rather than the antibiotic being wrong.
An amber prescription bottle lying on its side on a white background with a plain white label reading Bactrim, and six small round white tablets spilled out in front of it.
Trimethoprim-sulfamethoxazole
Moderate evidence
Used when resistant Staphylococcus aureus is likely or has been grown on a swab, which is the situation in which the first antibiotic did not work. This is the main reason for swabbing a spot before starting treatment. It is avoided in pregnancy and with some other medicines, so tell the prescriber everything you take.
16:9 hero for Fluconazole. Never cropped: the tone strip and the corner logo depend on the full frame.Diagram: how Fluconazole works in the skin
Moderate evidence
An antifungal tablet, usually a short weekly course, for yeast folliculitis that is widespread or has not cleared with washes alone. It works faster and more completely than topical treatment on the chest and back. The yeast lives on everyone and comes back, so it is normally followed by an antifungal wash once a week to hold it.
An amber prescription bottle lying on its side on a white background with a plain white label reading Doxycycline, and six small round white tablets spilled out in front of it.Diagram: how Doxycycline works in the skin
Limited evidence
A longer course is sometimes used for stubborn or recurring folliculitis, partly for the bacteria and partly because it calms inflammation. It is a second choice rather than a first one, since it can allow yeast folliculitis to take hold. It also causes sunburn easily, so it needs daily sunscreen on anything the sun reaches.

Procedures

−

These are done in the office, usually over several visits.

Draining a boil
Strong evidence
A boil that has come to a head is opened with a small blade under local anesthetic and the pus is let out, which relieves the pain almost immediately. It is often the whole treatment, with antibiotics only added if the redness is spreading. Done properly it heals with a much smaller mark than a squeezed boil, which is the argument for having it done rather than attempting it at home.
16:9 hero for Laser Hair Removal. Never cropped: the tone strip and the corner logo depend on the full frame.Diagram: how Laser Hair Removal works in the skin
Moderate evidence
For folliculitis and razor bumps driven entirely by shaving, particularly in the beard and neck, reducing the hair removes the cause instead of treating the result. It usually takes six or more sessions and works best with a device suited to your skin tone, since the wrong one can burn or leave marks on deeper skin. It is worth considering after months of the same bumps rather than after one crop.

When to See a Dermatologist

−

Most folliculitis clears at home in a week or two once the trigger is gone. Get urgent care if you have a deep, painful lump, if redness, swelling or warmth is spreading, if you have a fever, or if red streaks run from the spot - that can mean deeper infection needing antibiotics or drainage. Ask to be seen soon if painful bumps appear on the face or beard, if firm raised bumps build at the back of the neck, or if hair is being lost there - those can scar permanently and are easier to treat early. Book an ordinary appointment if two to three weeks of home care has not helped, if it keeps returning to the same place, if you have diabetes or a weakened immune system, or if the bumps followed a new medicine - and come while it is active, because a swab tells me most before antibiotics.

— Dr. Schwarz, Board Certified Dermatologist

Complications

−

Boils and carbuncles

When the infection goes further down the follicle it becomes a boil: a tender, swollen lump that comes to a head over several days. Several joined together are called a carbuncle. Squeezing is what turns a surface bump into one of these, so warm compresses and leaving it alone are the right first move. Boils often need draining or oral antibiotics, and they can leave a scar.

Cellulitis

Sometimes the infection leaves the follicle and spreads into the surrounding skin. The signs are redness, swelling and warmth spreading outward from the spot rather than staying in it, sometimes red streaks running away from it, and often a fever. That is a same-day problem needing oral antibiotics, and it is more likely in people with diabetes or a weakened immune system.

Keloid scars

Deep folliculitis on the chest, shoulders, jawline and the back of the neck can heal into raised, thickened scars, and that risk is higher on deeper skin tones. At the nape there is a specific pattern, acne keloidalis nuchae, where the bumps become firm and permanent and the hair in that patch is lost. It responds far better to early treatment than to waiting, so firm bumps building at the back of the neck are a reason to be seen rather than to keep treating at home.

Lookalikes

−

Acne

This is the confusion that sends most people looking things up. Both make small inflamed spots with pus. Acne has blackheads and whiteheads, spots of several different sizes, and sits mainly on the face, chest and upper back; it is rarely itchy. Folliculitis has no blackheads, the bumps are all much the same size, every one sits on a hair, it itches, and it follows shaving, friction and sweat rather than oil glands. It matters because acne treatments often do nothing for it.

Keratosis Pilaris

Rough goosebump-like bumps on the upper arms and thighs, which get mistaken for folliculitis because they also sit on hairs. The difference is that these are dry keratin plugs rather than inflammation: they are hard and rough to the touch, they do not have pus in them, they are there all the time rather than arriving as a crop, and they are usually not itchy. They also start in childhood and often run in the family.

Hidradenitis Suppurativa

Recurrent tender lumps in the armpits, groin, under the breasts or between the buttocks are often treated as ordinary boils for years before this is recognized. The clues are the places, the repetition in the same spots, lumps that join up and drain, ropey scars, and small blackheads sitting in pairs. Folliculitis clears and moves around; this keeps returning to the same folds. Getting the name right early changes the treatment completely.

Myths

+
  • "Folliculitis means you are not clean enough." It comes from follicle damage, moisture and occlusion, and it is common in people who shower twice a day. Washing harder makes it worse.
  • "It is just acne somewhere unusual." Acne involves blocked pores, blackheads and whiteheads and spots of varying sizes. Folliculitis has no blackheads, sits on hairs, itches, and follows shaving and friction. Acne treatments often do nothing for it.
  • "Popping them helps them heal faster." Squeezing pushes infection deeper - that is how a surface bump becomes a boil. It also leaves a dark mark lasting far longer than the spot.
  • "Antibiotics will fix any folliculitis." Only the bacterial kind. Yeast folliculitis often gets worse on antibiotics, and razor bumps are not an infection. The most common reason treatment fails.
  • "You should exfoliate the bumps away." Scrubs, brushes and harsh acids on inflamed follicles add to the damage. Gentle washing while it settles.
  • "Hot tub rash means the water was dirty." The issue is disinfection, not dirt. Pseudomonas survives when chlorine or bromine is not maintained, and the water can look clean.
  • "Once you have it, you will always have it." Most episodes clear completely. Recurrence means an ongoing trigger - a shaving method, damp clothing - not something permanent about your skin.

Questions Patients Ask

+

How do I tell folliculitis from acne?

Look for blackheads and whiteheads. Acne has them, folliculitis does not. Folliculitis bumps are all the same size, each sits at a hair, they itch more than they hurt, and they appear where you shave, sweat or rub - thighs, buttocks, beard, chest, back. Acne sits on the face, chest and upper back, has spots of different sizes, and is not itchy.

Is it contagious?

Mostly not in ordinary contact. The bacteria can pass through shared razors, towels, unwashed sports gear and close skin contact - avoid those while it is active. Yeast folliculitis and razor bumps are not caught.

Why does it keep coming back in the same place?

Because the cause is still there - the shaving method, friction, damp clothes, or a yeast cause treated as bacterial. Some people also carry Staphylococcus aureus long term, which can be tested and treated.

Can I still shave?

Yes, but change how. A fresh single-blade or safety razor, with the grain, with gel, and no stretching the skin. Take days off while the skin is inflamed. For persistent razor bumps, laser hair reduction is a longer-term option.

Should I use hydrocortisone on the itch?

Not on undiagnosed bumps. Steroid creams calm the itch for days while the infection carries on underneath, and the rash comes back more widespread. If itch is the main problem, a medicated wash and cool compresses are safer.

Will it scar?

Superficial folliculitis heals without scarring, though flat dark marks take months to fade on deeper skin tones. Deep folliculitis and boils can scar, and firm raised bumps at the back of the neck can scar permanently - reasons to be seen early rather than keep treating at home.

References

+