Q&A: What causes heat rash?

As sweat evaporates off the skin, it cools our bodies under hot conditions. When this process goes awry, heat rash can develop.

First aid - Heat rash

Did going on vacation cause this intensely pruritic rash?

Pediatric Skin Rash Specialist in Portland and Tigard OR

These heat rashes drive me insane every summer. I know it's mild for the sub, but imagine the joy of having to turn down a day at Six Flags because you're too

Urgent Care for Allergic Reaction Near Me

What is the cause of this woman's rash?

Does anybody know what these are? They hurt when touched and I didn't even realise I had them until earlier today. Is this serious? : r/bigboobproblems

hiking - Preventing heat rash around ankles and shins? - The Great Outdoors Stack Exchange

How to Treat and Prevent Heat Rash in Babies

Florida heat causes my dermatitis to flare up something awful! : r/florida

What Is Heat Rash + How To Treat It and Prevent It, According To a Dermatologist