How do you prevent or treat heat rash?

Answer 1

Heat rash is caused by blocking the sweat glands so to prevent it, don't block the glands! So, don't dress too warmly...dress appropriately for the temperature and for the activity you are doing at the time.

To treat:
remove clothing
stay in a cool, shady area
cool compresses, shower or bath
air dry...do not use a towel
calamine lotion or hydrocortisone cream