If you have prickly heat do the following 1. Take Vitamin C - in form of tablets or fruits which are rich in it 2. Take frequent cold water baths but without soap 3. Apply caladryl lotion locally 2-3 times per day. 4. Do not wear synthetics. If the above do not help then you may require antihistaminics and or localsteroids or alternatively you may be having some other problem. In such asituation consult your local Dermatologist.