I'm having the same problem here.
I can't put a band aid on my penis because... Well, I don't want to think about taking it off. Also, boners don't help--seam to just re-open the wound. So, uh... What am I supposed to do here?
Incipit seems to have the same thing going on as I do and I also don't know where scrape came from. I would like to be having sex but I can't let anyone see my injured member! Incidentally, I do wank it, however, I use lube. I'd like to keep wankin' it, but I can't because boners open it back up!
Thus, how does one treat a wound such as this?