Itchy Small Red Bumps on the Arms

Keratosis Pilaris often creates many rough, closely spaced bumps around hair follicles on the outer upper arms, sometimes described as chicken skin. Folliculitis can produce tender or itchy red bumps centred on hairs and may develop after shaving, sweating, friction, or occlusive clothing. Contact irritation may instead follow a new product, fabric, or exposure and can extend beyond the follicles. Note whether the bumps feel rough or contain fluid or pus, whether they are on both arms, and whether they appeared after hair removal or exercise.

Wash gently, avoid scrubbing and picking, and pause shaving or waxing over active bumps. Wear breathable sleeves and change out of sweaty clothing. Apply a plain moisturiser if the skin is rough or dry; introduce any exfoliating product cautiously and stop if burning develops. Avoid sharing razors or towels. If bumps contain pus, spread, or keep returning, a clinician can decide whether a medicated wash or other treatment is appropriate.

Arrange an examination if the bumps persist, recur, leave marks, or do not respond to gentle care. Seek prompt medical help for rapidly spreading redness, increasing warmth, severe pain, pus, fever, or red streaking. Urgent assessment is also sensible when swelling develops suddenly after an exposure or the skin becomes broadly blistered. Diagnosis depends on the surface pattern, follicle involvement, and recent exposures rather than itch alone.

Do the bumps fit Keratosis Pilaris or Folliculitis? Could shaving, sweat, clothing, or a product be contributing? Which cleanser or moisturiser is suitable, and when should I return if the bumps change?