It seems as though I get them the first few times I go out in the sun, with or without sunblock. The bumps
come up on my forearms, back of my hands, crook of my elbow
, behind my knees an down to my ankles for the most part. I have shown them to my doctor and he just told me to use a hydrocortisone creme on them, but never told my what they were or why I get them. Now my kids are getting them too. It seems I get them behind my knees when I am sweating. What is this???