I need help. I've been looking all over the internet but can't find an answer. I am 13 and I masterbait moderately, usually once a day. A couple of weeks ago I noticed a red ring slightly risen, 2 inches or so up my shaft. The part of my penis above the ring is swollen. No pain and no other problems but it won't go away. I don't want to go to a doctor until I am sure that I need to.

Please help!
Thanks