How to get rid of heat rash

Heat rash, also called prickly heat or miliaria, develops when blocked sweat ducts hold perspiration beneath the skin. Small raised spots, prickling, itching, or a stinging feeling may appear where clothing, skin folds, or heat trap moisture. Skin bumps, rash, or redness can look similar to irritation, allergy, or infection, so appearance alone cannot confirm the cause.

Move to a cooler place and let the skin dry naturally. Wear loose, breathable clothing, avoid heavy creams and oily products over the rash, and use a cool damp cloth for short periods. Wash gently with lukewarm water, pat rather than rub, and change out of sweaty clothing. A clinician or pharmacist can advise whether an emollient or a short course of topical corticosteroid is suitable, especially if itching is strong.

Arrange medical advice if the rash is spreading, very painful, producing pus, crusting, or not settling after cooling and gentle care. Seek prompt help for fever, marked swelling, breathing difficulty, faintness, or a rapidly worsening skin change. A clinician can check for infection or another rash when the pattern is unusual.

Ask whether the pattern fits heat rash, which products are safe on the area, and how long to try home care before an examination.