Heat rash is an irritation of the skin caused by extreme sweating. It develops when sweat ducts are clogged and perspiration becomes trapped under the skin. Heat rash appears as tiny, itchy red blisters or bumps on the skin. More severe cases may appear as deep red lumps or welts. Heat rash generally affects clothed areas of the body, such as the back, neck, chest, armpits and abdomen. Heat rash usually goes away without treatment, but there are things you can do to speed up healing and get rid of heat rash scarring.
Get out of the sun to avoid excessive sweating. Keep cool and stay indoors as much as possible. Use sunscreen when outdoors to protect your skin. Wear loose, non-restrictive clothing made from cotton. Stay away from polyester, nylon and moisture-wicking clothes.
Wash skin with a mild antibacterial soap. Use lukewarm water, to avoid aggravating the heat rash. Rinse and dry skin gently after cleansing, to prevent further scarring.
Apply hydrocortisone cream to affected areas. Hydrocortisone cream can reduce inflammation and scarring, soothe your skin, get rid of itchiness and promote faster healing.
Cool down your skin with ice cubes. Wrap ice cubes in a towel and apply to heat rash for 20 minutes, every three hours. Keep your skin cool, to tone down redness and prevent scarring.
Keep skin moist. Use a water based moisturizer to prevent your pores from clogging. Reapply moisturizer several times a day.