I Am Fifteen Years Old And Still A Virgin. My

I am fifteen years old and still a virgin. My scrotum has been very dry and scaly, and has a very reddish color. It has been like this for the past day. Last night I had a very intense burning sensation, so bad that I skipped school but I lied to my parents and told them I was sick. The pain has mainly gone away, and I can finally lay down in more than one position, but it doesn t seem to be getting any better. Similar has happened to me before except this time the skin is not flaky or peeling like it was in the past. The part right under my penis has also developed a strange grayish color, and is the only part not dry. I have no idea what this is and it does not seem to be going away. What could be causing this and what can I do about it?