Permethrin or pyrethrin lice treatment
ListedUse an appropriate labelled formulation and address recent contacts; do not apply to eyes.
Pubic Lice vs Folliculitis
An infestation of coarse body hair by crab lice, usually spread through close contact.
Key differences
The same eight facts on every condition comparison.
Usual age
Sexually active adults
Any age
Where
Pubic hair
Hair-bearing skin
Main sign
Lice and eggs on hairs
Small pus spots, each at a hair
Itch or pain
Itchy
Itchy or tender
Contagious
Yes, close contact
Usually not
Long term
Clears with treatment
Settles once the cause stops
Scars
No
Rarely; dark marks possible
Who gets it
Sexually active adults
Shaving, friction, hot tubs
What is it?
Pubic Lice
Folliculitis
What is it?
- What it is
An infestation of coarse body hair by crab lice, usually spread through close contact.
- 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
Pubic Lice
Pubic Lice The insect's broad body and prominent grasping claws are shown in detail.
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
Pubic lice feed on blood at the skin surface and attach their eggs to hair shafts. The skin's reaction to feeding can cause itching and irritation.
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.
When it usually starts
010203040506070+
Pubic Lice. Usually follows close contact; unexplained infestation in a child needs professional assessment.
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
Lice feed on blood and attach eggs to hair shafts.
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
Most everyday folliculitis is not considered an inherited disorder. Skin conditions and individual susceptibility can influence risk.
Risk factors
Close intimate contact
Shaving, Diabetes, Obesity, Weakened immunity, Shaving or waxing, Sweat and occlusion, Reduced immunity
Trigger
● Pubic Lice
● Folliculitis
Contact with an infested person
Can contribute
Not listed
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
Stress
Not listed
Not a typical trigger
Hormonal changes
Not listed
Not a typical trigger
Pore-clogging products
Not listed
Can contribute
Sun exposure
Not listed
Not a typical trigger
Heat and sweating
Not listed
Common trigger
Alcohol
Not listed
Not a typical trigger
Spicy foods
Not listed
Not a typical trigger
Harsh skin care
Not listed
Can contribute
Friction and tight clothing
Not listed
Common trigger
Shaving or waxing
Not listed
Common trigger
Poorly maintained hot tubs
Not listed
Can contribute
Prolonged antibiotic use
Not listed
Can contribute
Daily Care
Pubic Lice
Folliculitis
Daily care
Habits that help
- Use the recommended lice treatment exactly as directed
Follow the product-specific repeat schedule rather than improvising extra doses. - Wash recently used underwear, clothing, towels and bedding
Use suitable hot washing and drying or follow advice for items that cannot be washed. - Tell recent sexual partners so they can be assessed and treated
Ask about testing for other sexually transmitted infections. - Avoid sexual contact until treatment and partner management are complete
Follow local sexual-health guidance about when contact can resume. - Follow the pubic lice care plan
Follow the labelled treatment, address recent contacts and wash clothing and bedding. Do not apply ordinary lice products to eyelashes.
Avoid
- Avoid: Sharing towels, bedding or clothing
Re-exposure can restart the infestation. - Avoid: Insecticide sprays, shaving alone or lice medicine near the eyes
Eyelash infestation needs clinician-guided care; shaving does not reliably cure pubic lice.
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
● Pubic Lice
● Folliculitis
Filter by type
All types
Over-the-counter
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.
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
Limited evidenceIt 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.
Prescription topicals
None listed
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.
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.
Prescription pills
None listed
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.
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.
Procedures
None listed
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
Correct treatment and management of close contacts can clear the infestation. Itching may take longer to settle; persistent live lice suggest reinfestation or the need to review treatment.
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
Other sexually transmitted infections can coexist and testing may be appropriate.
- 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 care for eyelash involvement, pregnancy, treatment failure or infestation in a child.
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
Pubic Lice:What is Pubic Lice?
An infestation of coarse body hair by crab lice, usually spread through close contact.
Pubic Lice:What can I do day to day?
Follow the labelled treatment, address recent contacts and wash clothing and bedding. Do not apply ordinary lice products to eyelashes.
Pubic Lice:When should I get medical advice?
Seek care for eyelash involvement, pregnancy, treatment failure or infestation in a child.
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
