I'm a 15 year old female and around a week ago I got these bumps that looked like acne, they weren't very itchy, but annoyed me so, out of habit I tried popping them. Soon it developed into a rough, flat rash that is red. It is on my chest and shoulder area. Yes I have picked at it, so now I'm covering it with bandaids, but I'd like tone know what it might be. I have a link to photobucket where you can scroll through the pictures and look at them. I need a suggestion as soon as possible. 

http://s1108.photobucket.com/user/emily_collins5/media/Mobile%20Uploads/1458464805136-321167550_zps5hyhn9oz.jpg.html

http://i1108.photobucket.com/albums/h410/emily_collins5/Mobile%20Uploads/1458464805136-321167550_zps5hyhn9oz.jpg