Hi I'm 16 and a few months ago I got a bump under my sling that was hurting so bad I couldn't walk without it hurting or just anything that touches it. So I put hot compress, a hot bath, rubbed garlic, everything helped with the pain so it didn't hurt till now. I tried to pop it and little bit of white and blood came out and it stayed the same but soft and does t hurt now every time I try to squeeze it without squeezing hard blood and white stuff would come out so after I do that it gets really hard and after a half an hours or so it gets soft again it's been there for about 3-4 months can someone tell me what this is I'm a vergin .