Every Winter since I was about 13 and got Pityrisis Rosea I have gotten this very very itchy rash. At first I thought it was just a heat rash and so did my parents but now i'm 21 and it's still happening. I also just had my son last year and he has gotten the rash again this year for the second time. Aveeno helps for about 20 minutes and then it's just itching. I literally wake up from a dead sleep from scratching myself. It's only on my inner forearms, lower back and all over my legs. Never on my face hands, feet or chest. but it has recently migrated to my stretch marks on my stomach. It always starts out as a couple bumps but then a couple days later is everywhere. Also any time i get it wet and the water isn't scolding hot it makes it itch ten times worse. What is wrong with me?