Heat Rash Bumps Treatment: What Helps

Heat rash, also called prickly heat or miliaria, develops when sweat is trapped near the skin surface. Small raised spots may feel prickly or itchy and can appear where clothing, skin folds, or equipment hold warmth against the body. A heat rash can be red, skin-coloured, or made up of tiny clear fluid-filled spots. See the guide to [Heat Rash](/conditions/heat-rash/) and related [Skin Bumps](/symptoms/skin-bumps/).

Move to a cooler place and let the skin dry. Use a cool, damp cloth briefly, then pat rather than rub. Wear loose, breathable clothing and change out of sweaty garments. Avoid heavy ointments, fragranced products, and scratching, which can block sweat ducts or damage the surface. A light moisturiser may help if the skin feels dry; learn more about [Emollient Therapy](/treatments/medical-dermatology/emollient-therapy/). A pharmacist or clinician can advise whether another treatment is suitable; do not apply a steroid cream to a large, broken, or infected-looking area without guidance.

Arrange medical advice if the rash is spreading, keeps returning, becomes painful, or does not improve after cooling and drying the area. Prompt assessment is needed for pus, increasing warmth, marked swelling, fever, or skin that is becoming very tender, because these features can point to infection or another diagnosis. Seek urgent help for severe illness, breathing difficulty, facial swelling, or a rapidly worsening rash.

Ask whether the bumps fit heat rash, whether a product or medicine could be contributing, and which cream is safe for the affected body site. You can also ask how to prevent recurrence during exercise, travel, or hot weather.