Prickly heat (Miliaria Rubra) is a skin disorder which produces an irritating skin rash as the result of obstructed sweat-glands. When the narrow ducts carrying sweat to the skin surface get clogged, the trapped sweat causes inflammation, which produces irritation (prickling) and itching. Prickly heat usually consists of a rash of very tiny blisters but also can appear as … [Read more...]