Adapalene
Strong evidenceThe strongest thing you can buy without a prescription, and the best first move for most acne. It unclogs pores before they inflame, which is why it prevents spots rather than treating them.
Acne vs Folliculitis
Acne often includes blackheads, whiteheads and inflamed spots of different sizes. Folliculitis often produces itchy or sore bumps centered on hairs. Its causes include bacteria, yeast and irritation, so treatment depends on the cause.
Key differences
The same eight facts on every condition comparison.
Usual age
Teens to mid-20s
Any age
Where
Face, chest, back
Hair-bearing skin
Main sign
Clogged pores and spots
Small pus spots, each at a hair
Itch or pain
Spots can be sore
Itchy or tender
Contagious
No
Usually not
Long term
Controlled; often outgrown
Settles once the cause stops
Scars
Can scar
Rarely; dark marks possible
Who gets it
Most teens; some adults
Shaving, friction, hot tubs
What is it?
Acne
Folliculitis
What is it?
It starts in the follicle.
Acne affects the hair follicle and its oil gland.
Spots take several forms.
Plugs form blackheads or whiteheads; inflammation forms pimples and deeper lumps.
It is not about dirt.
Bacteria are only one part of the process.
Tests are rarely needed.
An unusual pattern or hormonal symptoms may call for assessment.
Overview
Oil and dead skin cells block hair follicles. This can cause blackheads, whiteheads, pimples, or deeper painful lumps.
It is inflammation of hair follicles.
It can be superficial or deeper.
It ranges in severity.
A small pustule can sit around a hair, while deeper infection can form a boil.
Not every case is infection.
Irritation after hair removal or reactions to products can look similar.
Scalp scarring needs attention.
Some follicle disorders can permanently damage hair.
Overview
Inflammation around hair follicles can produce itchy or sore bumps and pustules. Bacteria, yeast, irritation and occlusion are among the causes. This broad category includes Malassezia folliculitis; the cause determines treatment. Inflammation around hair follicles can produce itchy or sore bumps and pustules. Bacteria, yeast, irritation and occlusion are among the causes. This broad category includes Malassezia folliculitis; the cause determines treatment.
What it looks like
Acne
Comedonal acne Mostly blackheads and whiteheads.
Inflammatory acne Red papules and pustules.
Nodulocystic acne Deep painful lumps that can scar.
Hormonal acne Breakouts along the jaw and chin.
Body acne On the chest, back and shoulders.
Folliculitis
Bacterial folliculitis Staph infection, the most common.
Hot-tub folliculitis From bacteria in poorly treated water.
Yeast folliculitis Uniform itchy bumps on chest and back.
Razor bumps (pseudofolliculitis) From hairs curling into skin.
Skin tones
Diagram
In the skin
Oil and shed skin cells can block a hair follicle, changing the environment inside the pore. Bacterial activity and the immune response contribute to inflammation, swelling and tender spots.
Infection, irritation or blockage can cause inflammation around a hair follicle. The response may produce a small tender bump or pustule around the follicular opening.
Where it shows up
Face, chest and upper back
Hair-bearing skin
When it usually starts
010203040506070+
Acne. Acne Often in teens Often begins in the teen years; acne can continue or first appear in adulthood.
Folliculitis. Folliculitis Any age There is no single typical starting-age range. Bumps can follow shaving, friction, sweating or hot-tub exposure. Recurrent or unexplained episodes deserve an assessment of the cause.
Causes and triggers
Causes
Acne forms when oil and dead skin cells clog pores, acne bacteria grow inside them, and inflammation follows. Hormones that increase oil play a central role.
Oil and dead skin cells block hair follicles. Bacteria within the follicles and inflammation contribute to pimples and deeper spots. Hormonal changes can increase oil production.
Folliculitis is inflammation of hair follicles, usually from bacteria, yeast or irritation.
Folliculitis describes a pattern of inflammation rather than one organism. Damaged or occluded follicles may become infected; shaving-related irritation can produce similar bumps without infection.
Family tendency
Acne often runs in families. A parent with severe acne raises the chance of severe acne.
Acne can run in families. A close relative with deep, painful acne increases the chance of developing that pattern.
Most everyday folliculitis is not considered an inherited disorder. Skin conditions and individual susceptibility can influence risk.
Risk factors
Teen years, Family history, Polycystic ovary syndrome, Oily skin, Puberty, Hormonal changes
Shaving, Diabetes, Obesity, Weakened immunity, Shaving or waxing, Sweat and occlusion, Reduced immunity
Trigger
● Acne
● Folliculitis
Hormone changes around periods
Well established
Not listed
Heavy, pore-clogging products
Strong link
Not listed
Some medicines like steroids
Strong link
Not listed
Friction from masks, helmets or phones
Strong link
Not listed
High-sugar and dairy-heavy diets
Possible
Not listed
Stress
Possible
Not a typical trigger
Hormonal changes
Common trigger
Not a typical trigger
Pore-clogging products
Common trigger
Can contribute
Sun exposure
Not a typical trigger
Not a typical trigger
Heat and sweating
Can contribute
Common trigger
Alcohol
Not a typical trigger
Not a typical trigger
Spicy foods
Not a typical trigger
Not a typical trigger
Harsh skin care
Can contribute
Can contribute
Friction and tight clothing
Can contribute
Common trigger
Shaving or waxing
Not a typical trigger
Common trigger
Poorly maintained hot tubs
Not a typical trigger
Can contribute
Prolonged antibiotic use
Not a typical trigger
Can contribute
Shaving and waxing
Not listed
Well established
Hot tubs
Not listed
Well established
Tight clothing and sweat
Not listed
Strong link
Antibiotics or steroid creams
Not listed
Possible
Daily Care
Acne
Folliculitis
Daily care
Habits that help
- Strip the routine back
Use a gentle cleanser, moisturizer and sunscreen without unnecessary product layers. - Cut back on sugar and refined carbs
Helps a little, mostly in oily, hormonal acne. - Wear sunscreen daily
Stops dark marks from deepening.
Avoid
- Avoid: Picking and squeezing
The biggest cause of avoidable scars. - Avoid: Scrubbing and over-washing
Strips the barrier and pushes you off treatment. - Avoid: Adding more products
Avoid adding several irritating products at the same time. - Avoid: Heavy oil-based hair products
Cause stubborn small bumps along the hairline. - Avoid: Friction and trapped sweat
Straps and collars press oil into pores. - Avoid: Heat and humidity
Swell the pore lining and trap what is behind it. - Avoid: High-glycemic diet
Sugar and refined carbs raise the hormones driving oil. - Avoid: Skim milk and whey protein
Linked to acne more than other dairy, though weakly. - Avoid: Stress
Raises the hormones that worsen acne you already have. - Avoid: Stopping treatment once it works
Acne usually returns within two to three months.
Habits that help
- Change how you shave
Fresh single blade, with the grain, with gel, days off when sore. - Shower and change after sweating
The most effective habit for trunk, buttocks and thighs. - Warm compresses on a tender lump
Help a boil come to a head and drain. - A gentle cleanser and moisturizer
An intact barrier means fewer inflamed follicles. - Loose clothing over the area
Remove the occlusion and mild folliculitis often settles. - 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.
Avoid
- Avoid: Close shaving with a dull razor
Cutting below the surface damages the follicle. - Avoid: Shaving against the grain
Stretching the skin does the same. - Avoid: Dry shaving
More drag, more nicks, more inflamed follicles. - Avoid: Staying in damp workout clothes
A reliable way to bring on a crop. - Avoid: Tight, non-breathable fabrics
Trap heat and sweat over the follicles. - Avoid: Squeezing and picking
Pushes infection deeper, turning a spot into a boil. - Avoid: Scrubbing and exfoliating
Damages the follicle openings and the barrier. - Avoid: Heavy oils and pomades
Especially under clothing or a hat. - Avoid: Poorly maintained hot tubs and pools
Weak disinfection lets Pseudomonas survive. - Avoid: Sharing razors and towels
Moves Staphylococcus aureus around.
Treatment differences
Evidence labels come from each condition’s own treatment list.
Treatment
● Acne
● Folliculitis
Filter by type
Over-the-counter
Benzoyl Peroxide
Strong evidenceKills the bacteria involved in inflamed spots, and is the one thing that stops acne bacteria becoming resistant to antibiotics. Lower strengths work about as well as higher ones and sting less. It bleaches towels and pillowcases.
Azelaic Acid
Moderate evidenceWorks on the spot and the mark it leaves at the same time, which makes it useful on deeper skin tones. It is also one of the few acne treatments considered safe in pregnancy.
Salicylic Acid
Moderate evidenceGets inside the pore and loosens the plug, so it suits blackheads and whiteheads more than deep spots. Gentler than a retinoid, and weaker than one.
Niacinamide
Limited evidenceSold heavily for acne, and the evidence for clearing spots is thin. It is genuinely useful for the marks left behind and for tolerating stronger actives - just not as the treatment itself.
Sulfur
Limited evidenceAn old treatment, usually a mask or a spot dab, that dries the surface of a spot and mildly loosens plugs. It is gentle enough for skin that cannot tolerate benzoyl peroxide or a retinoid. It smells, and it is weaker than everything above it on this list.
Tea Tree Oil
Limited evidenceA 5 percent gel reduces inflamed spots in small studies, more slowly than benzoyl peroxide does. Neat oil straight from the bottle is a common cause of an itchy rash, so buy it already diluted. It is a reasonable extra rather than something to build a routine on.
Salicylic Acid
Limited evidenceA 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.
Tea Tree Oil
AvoidIt 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.
Benzoyl Peroxide wash
Limited evidenceA 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
Limited evidenceAn 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.
Ketoconazole shampoo as a wash
Limited evidenceThe 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.
Hydrocortisone
Limited evidenceIt 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.
Prescription topicals
Tretinoin
Strong evidenceThe most studied topical in acne. Stronger than adapalene and more irritating with it, so it is usually the step up rather than the starting point. Not used in pregnancy.
Aklief
Strong evidenceA newer retinoid, and the one specifically tested on chest and back acne rather than just the face. Useful when the trunk is the main problem. Expensive without coverage.
Clindamycin
Strong evidenceCalms inflamed spots, but should never be used on its own. Guidelines are explicit about this - alone it stops working within months as bacteria adapt, so it is always paired with benzoyl peroxide or a retinoid.
Tazarotene
Strong evidenceThe strongest of the prescription retinoids, and the step to take when tretinoin has stopped making a difference. It is particularly good on stubborn blackheads and whiteheads. It is also the most irritating of them, so it is usually started two or three nights a week. Not used in pregnancy.
Winlevi
Moderate evidenceBlocks the hormone signal that drives oil production, but only where you put it. It is the first hormonal option that works topically, and the only one that can be used by men as well as women.
Aczone
Moderate evidenceMild on the skin and tends to suit adult women with inflamed spots who cannot tolerate a retinoid. Applied at the same time as benzoyl peroxide it can temporarily stain skin orange, so space them apart.
Clindamycin
Limited evidenceA 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.
Mupirocin
Moderate evidenceClearing Staph from the nose. 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.
Prescription pills
Doxycycline
Strong evidenceBrings widespread inflamed acne down quickly, and is meant to be used for three to four months, not indefinitely. Always alongside a topical, which is what carries on once the tablets stop.
Accutane
Strong evidenceThe only acne treatment that often produces lasting clearance after the course ends. What it costs you is months of dry lips and skin, blood tests, and strict pregnancy prevention. For acne that scars, that trade is usually worth making early rather than late.
Spironolactone
Moderate evidenceFor the pattern rather than the individual spot - deep jawline acne in adult women that flares with the cycle. It works slowly, over three to six months, and can be continued long term. Not used in pregnancy.
Birth Control Pills
Moderate evidenceLowers the hormone signal driving oil production across the whole body, so it suits acne on the chest and back as well as the face. Takes about three months to show, and carries a small clot risk that needs weighing up.
Minocycline
Moderate evidenceAnother tetracycline antibiotic for widespread inflamed acne, used the same way as doxycycline: three to four months, always alongside a topical. It is usually kept as the second choice, because it carries rarer but more serious side effects, including a blue-gray skin discoloration with long use.
Seysara
Moderate evidenceA narrow-spectrum antibiotic designed specifically for acne, so it disturbs gut bacteria less than doxycycline. One tablet a day, still meant for three to four months and still alongside a topical. It works about as well rather than better, and it is considerably more expensive.
Doxycycline
Limited evidenceA 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.
Cephalexin
Moderate evidenceThe 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.
Trimethoprim-sulfamethoxazole
Moderate evidenceUsed 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.
Fluconazole
Limited evidenceAn 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.
Injections
Cortisone Injection
Limited evidenceDeals with one stubborn painful lump, not the condition. It settles in a day or two and is the safe alternative to squeezing it. It does nothing to prevent the next one.
None listed
Procedures
Comedone Extraction
Limited evidenceClears blackheads that are already there, quickly and visibly. It does not stop new ones forming, so it is an add-on to a retinoid rather than a substitute for one.
Chemical Peel
Limited evidenceModest benefit for clogged pores and a better one for the dark marks left behind. Needs repeat sessions, and the benefit fades if the daily treatment stops.
1726 nm Laser
Limited evidenceHeats the oil glands themselves, which is a genuinely different approach from everything else on this page. Trial results out to about six months are good, it works across skin tones, and it is expensive and rarely covered. Long-term data is still limited.
Photodynamic Therapy
Limited evidenceCan help stubborn inflamed acne, but the protocols vary widely between clinics, the downtime is real, and the evidence is not strong enough to put it ahead of the options above.
Blue Light Therapy
Limited evidenceBlue light kills acne bacteria at the surface, so a course can quiet mild inflamed spots for a while. The effect fades within weeks of stopping, and it does nothing for blackheads or deep lumps. In-clinic courses cost far more than a topical that would do more.
Incision and Drainage
Moderate evidenceDraining a boil. 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.
Laser Hair Removal
Limited evidenceFor 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.
Outlook
Long term
Acne is usually controlled rather than permanently cured. Treatment reduces new breakouts, but improvement takes time and maintenance may be needed. Deep or scarring acne deserves early assessment because existing scars may remain after the active spots settle.
Many superficial cases settle with appropriate care, but repeated episodes need assessment for an ongoing contributor such as shaving, friction or infection. The course depends on the type; deeper inflammation can take longer to heal and may scar.
Complications
Possible complications
- Dark marks
- Redness
- Scars
- Depression and anxiety
- Family conflict
- Social impact
More details
Dark marks
Flat brown or violet patches left where a spot was. They are not scars and they do fade, but it commonly takes 6 - 12 months, and sun exposure makes them last longer. These WILL FADE with time.
Redness
Flat pink or red marks left where a spot was, most often on lighter skin. Also not scars. They usually settle on their own, though it can take several months. These WILL FADE with time.
Scars
Permanent dents, pits or raised bumps left where inflammation broke down the skin's structure. Once formed, they can only be improved by procedures. These WILL NOT FADE with time.
Depression and anxiety
Acne can affect self-esteem, confidence and mental health. The link is consistent, and it does not track with how severe the acne looks to anyone else - which is itself a reason to treat it.
Family conflict
This is very common. Acne visits involving a teenager and a parent can sometimes be challenging, particularly when there is ongoing conflict about acne care.
Social impact
People may avoid photos, dating, social situations or activities because of their skin.
- Boils and carbuncles
- Cellulitis
- Keloid scars
More details
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.
When to get help
When to get help
Seek help for painful deep spots, scarring, persistent breakouts, or an uncertain diagnosis. Earlier treatment can reduce the chance of more scars.
Do not assume eye symptoms are part of acne. They need their own assessment.
Arrange assessment if the rash persists, keeps returning, is extensive or has not responded to treatment. A pustule swab may help distinguish bacteria and guide treatment.
Seek prompt medical care for fever, rapidly spreading redness or warmth, worsening pain, a large deep lump, or feeling unwell. Seek care earlier if your immune system is suppressed.
Bumps around the eye with eye pain, swelling, light sensitivity or vision change need prompt assessment. Do not apply body washes or skin medicines into the eye.
Common questions
Acne:Does acne ever go away?
For most people it settles by the mid-twenties. About one in six women still has it into her 30s and 40s, and it can return after pregnancy, after stopping the pill, or with any hormone shift. Controlled rather than cured.
Acne:Does what I eat cause acne?
Less than the internet suggests. The evidence points at high-glycemic diets - sugar and refined carbohydrate - and, less consistently, at skim milk. Chocolate and greasy food never held up, and no diet replaces treating the skin.
Acne:Why does my skin get worse when I start a new treatment?
That is purging. Retinoids speed up clogs already forming under the surface, so weeks of spots arrive at once. It peaks around weeks two to six and settles by week eight. Still worsening past 10 to 12 weeks is irritation, not purging.
Acne:Is it ever okay to pop a spot?
No. Squeezing pushes the contents sideways into surrounding skin, turning a spot that would have gone in days into a mark that lasts months, or a scar that lasts forever. A large, painful lump can be injected in clinic instead, and settles in a day or two.
Acne:Do I need antibiotics?
Sometimes, but never alone and never for long. They go alongside benzoyl peroxide or a retinoid, usually for three to four months, then stop while the topical carries on. Alone or indefinitely, they stop working and drive resistance.
Acne:Is my acne hormonal?
Almost all acne is hormonal - hormones drive oil production. The label only matters if it changes treatment: deep spots along the jawline and lower face in an adult woman, flaring before periods, usually respond better to hormonal treatment than to antibiotics.
Folliculitis: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.
Folliculitis: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.
Folliculitis: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.
Folliculitis: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.
Folliculitis: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.
Folliculitis: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.
Sources