FREE WORTH RS-50/- DETTOL COOL SOAP Dermicool Prickly Heat Powder has become synonymous with the summer season. It is usually the first thing that comes to mind that needs to be bought along with mangoes. The Prickly Heat Powder is used to treat prickly heat and to provide long-lasting cooling relief from stinging and itching of the skin. It also provides relief from rashes that people tend to get during summers.