http://www.homeremediesforgirls.com/Description/10081/Tips-To-Survive-and-Prevent-Prickly-Heat-This-

A hot and humid climate country like India increases how much you sweat and that, in turn, blocks your sebaceous glands. Owing to the blockages the glands eventually burst and this is the main reason of prickly heat. It can also be created by less-than-developed sweat glands as well as bacterial skin infections. From your groin, armpits and stomach to your neck, back, hands and feet, spiky heat can appear anywhere on your body.