Is it acne or folliculitis?

PossibilityCluesWhat changes
AcneBlackheads, whiteheads, raised spots or pus filled bumps, sometimes with deeper painful lumps. The chest and back are common sites.Acne treatments such as salicylic acid or benzoyl peroxide are options.
Bacterial folliculitisA sudden acne looking breakout, sometimes with a red ring around each spot. Surface infections tend to itch; deeper infections tend to hurt.Removing the trigger can help. Some infections need prescribed treatment.
Malassezia folliculitisSimilar looking small bumps and pus filled spots on the upper trunk, caused by a yeast infection.Treatment uses antifungal medicines rather than treating every bump as ordinary acne.
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These are clues, not a home diagnosis. A dermatologist can distinguish folliculitis from acne. The distinction matters because bacteria and yeast do not call for the same medicines.45

Did the bumps start after sweating, shaving or a hot tub?

Heat, damp skin and rubbing from tight clothing can damage hair follicles and make infection easier. Shaving, waxing and plucking are other triggers. Hot tub folliculitis often appears beneath swimwear about 12 to 48 hours after using the tub. Loose clothing helps reduce rubbing in hot, humid weather, even if the outfit had plans to stay on all afternoon.25

What should you do about itchy body spots?

  1. 1Start with gentle cleansing. For acne, wash twice a day and avoid scrubbing, which can irritate skin and make acne worse.
  2. 2Reduce friction and trapped sweat. Wear loose, breathable clothing, then change out of workout clothes and shower after exercise.
  3. 3Leave the spots alone. Picking or squeezing acne can cause scars. Do not pop body pimples, because this can worsen symptoms or cause infection.
  4. 4Choose treatment for the cause. A pharmacist can advise on salicylic acid or benzoyl peroxide for acne. If the breakout could be folliculitis, have the cause checked rather than assuming an acne product is the answer.
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A gentle cleanser is enough for the washing step; the bathroom does not need to become a product showroom.3

What helps if it is folliculitis?

For folliculitis, apply a warm compress for 15 to 20 minutes at least 3 to 4 times daily for relief. If shaving, plucking or waxing caused the infection, stop for 30 days. Breakouts often clear on their own when the trigger stops and the immune system is healthy, but some need medication. There is no single clearing time for every itchy body breakout.25

When should you see a doctor?

See a GP if treatment is not helping, you have many spots, or bumps are deep, painful or leaving scars. Get medical help for hot, swollen, red skin, which can signal infection; redness can be harder to see on brown or black skin. Seek help too if the breakout affects your mental health. Recurrent folliculitis can need swabs to identify the bacteria and guide treatment.34

Where this answer comes from

  1. 1Pimples & Acne on Scalp: Causes, Shampoo & Other Treatmentsmy.clevelandclinic.org
  2. 2Acne-like breakouts could be folliculitisaad.org
  3. 3Acnenhs.uk
  4. 4Bacterial skin infections. Folliculitis and furunculosisdermnetnz.org
  5. 5Acne-like breakouts could be folliculitisaad.org
  6. 6Acne urticatadermnetnz.org