Like most baby rashes, prickly heat is usually harmless and will go away on its own. If you notice a small patch of tiny red blisters beneath your child’s skin, evaluate their surroundings.

You’re most likely to get heat rash if you live in a hot, humid climate. Babies are particularly likely to get heat rash, especially if they’re overdressed. Most of the time, heat rash isn’t ...

Babies most often experience heat rash in their armpits, neck, groin, thighs and bum. Adults may develop heat rash in all these places too, but it's most common in skin folds and places that are ...