What should you know about tiny clear bumps on skin?

Bumps that appear after heat, sweating, or occlusive clothing can fit heat rash. Those centred on hairs, especially with tenderness or a pustule, can occur with folliculitis. Firm pearly bumps may be milia rather than fluid-filled blisters. Keratosis pilaris often feels rough and follicle-based, while lichen planus can cause a persistent patterned rash. These descriptions overlap, so a clear appearance does not identify one diagnosis by itself.

Note where the bumps occur, whether they come and go, and whether they itch, sting, or contain fluid. Avoid popping them, because broken skin is easier to irritate and infect.

Keep the area cool and dry, use a mild cleanser, and wear breathable clothing. Stop a new cosmetic or fragranced product if it coincided with the eruption. Use a plain moisturiser if the skin feels dry, but avoid heavy occlusive layers over a sweaty rash. If symptoms continue, a clinician can decide whether an antihistamine treatment or another targeted approach is suitable. Do not apply acids or prescription creams without guidance.

Arrange an appointment when bumps last beyond a short episode, repeatedly return, spread, become painful, crust, or affect the eyes or genitals. Seek urgent help for rapidly worsening swelling, fever, severe pain, breathing difficulty, or swelling of the lips or tongue.

Ask whether the bumps look more like heat rash, folliculitis, milia, or another condition, and whether any product or activity may be contributing. Bring a list of new medicines, skincare products, and recent heat or friction exposure.