Treatment

Avoiding overheating may be all you need to do for mild heat rash. Once skin is cool, heat rash tends to clear quickly.

Ointments

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