Hello, I'm a 15 year old girl and I had PR for the first time. I was so disgusted and always wore a jacket to cover it up even when it was hot outside. There was all over my stomach, back, arms, chest, butt, and legs(thighs too). When I showed my mom the bumps, she took my to the doctor and the doctor said it was eczema. By that time it wasn't all over my body until the next two days. They was everywhere sadly. We went back to the doctor and that's when the doctor said I had PR. He gave me Benadryl for itching and Hydrocortisone. Benadryl helped a lot (I don't know what hydrocortisone was suppose to do). But I did some research because I really couldn't stand how people kept asking me what's on my neck. I saw that people was tanning and using other things. I saw people say that used Desitin so I told my mom about and she bought some. I put that on every night because it comes out white. I put Desitin on for about 5 days and it worked. They were still kind of there but I continued using it and it was just dark spots on my body. I also saw someone say they used Cetaphil and that also helps. It's making the dark spots go away , so I recommend everyone use Desitin until you see the bumps go away than use Cetaphil for leftovers dark spots.