I didn't know what Prickly Heat was, so I looked it up: Miliaria - Wikipedia, the free encyclopedia It's often referred to as Heat Rash here. I've had it before, but I just figured I was allergic to the sun - lol!
Wiki says it's caused by blocked sweat glands, so my first and most obvious suggestion would be exfoliation, but that's probably something you've already tried. And I don't ...



