I have these white almost boomerang-shaped mark on one side of my penis. It stings a little bit, and is a little sore. It almost looks like what a fresh burn looks like (that kind of white). It's not raised or anything. On my foreskin there's a small dark part, that is also a little sore, and on the inside of the foreskin there is a matching dark mark that is the mirror-image of the white boomerang shaped mark on the actual head.
Any ideas? I'm really nervous, and am waiting to get to a MD. I really don't think it's an STD.