What should you know about skin heat rash treatment?

Heat rash, also called prickly heat, occurs when blocked sweat ducts trap perspiration near the skin surface. It may cause tiny bumps, redness, stinging or itch, commonly in folds, under clothing or where skin touches skin.

A rash may have another cause if it is very painful, widespread, oozing or persistent. Skin bumps, skin rash and skin redness can describe overlapping appearances rather than one diagnosis.

Move to a cooler environment, loosen or remove tight clothing, and keep the area dry with gentle patting. Wash with lukewarm water and a mild cleanser, then avoid heavy ointments, fragranced products and vigorous rubbing while the skin settles.

A clinician may suggest a soothing product or a short course of a topical medicine for significant inflammation. Emollient therapy can support a dry, irritated barrier, while topical corticosteroids should be used only as directed because skin folds and thin skin absorb medicines readily.

Arrange medical review if the rash does not improve after cooling measures, keeps returning, or develops pus, crusting or increasing tenderness. Seek urgent help for fever, rapidly spreading redness, facial swelling, breathing difficulty or a child who appears unusually unwell.

Ask whether the pattern fits heat rash, which products are safe for the affected body area, how long to use any medicine, and how to prevent recurrence in hot or humid weather.