Every spring and fall i break out with these tiny bumps that itch tremendously. If I squeeze one only a little clear fluid comes out, never any puss. I can not stress how horribly they itch. 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. What is this???