Heat rash, also known as prickly heat or sweat rash, is a common name for a skin condition called miliaria. This is a rash ...

Heat rash — also known as prickly heat, summer rash, or wildfire rash — occurs when the sweat gland ducts become blocked with sweat. Cooling or gently patting the rash may provide some relief.

Have you ever wondered why some people struggle with heat rash every summer while others appear to navigate the hot weather with no issues at all? We asked a dermatologist to explain what causes ...

Heat rashes, also known as miliaria, occur when the sweat glands and ducts become blocked. This leads to sweat-filled bumps under the skin, which can cause pain, itching, and inflammation.