Avoiding overheating may be all you need to do for mild heat rash. Once skin is cool, heat rash tends to clear quickly.
More-severe forms of heat rash may require ointments you apply to your skin to relieve discomfort and prevent complications. Such topical treatments may include:
- Calamine lotion to soothe itching
- Anhydrous lanolin, which may help prevent duct blockage and stop new lesions from forming
- Topical steroids in the most serious cases
Lifestyle and home remedies
Tips to help your heat rash heal and to be more comfortable include the following:
- In hot weather, dress in loose, lightweight clothing that wicks moisture away from your skin.
- Spend as much time as possible in air-conditioned buildings.
- Bathe or shower in cool water with nondrying soap, then let your skin air-dry instead of toweling off.
- Use calamine lotion or cool compresses to calm itchy, irritated skin.
- Avoid using creams and ointments that contain petroleum or mineral oil, which can block pores further.