Prickly heat' or 'heat rash' is characterised by the presence of tiny, red, itchy spots on the skin, usually brought on in hot, sweaty conditions. Prickly heat is often accompanied by aggravating ...

In some people exposure to sunlight can bring on a rash which is commonly referred to as 'prickly heat' or 'heat rash'. The medical term for this reaction is 'photosensitivity'. Certain factors ...