Alright, I do believe this is me just freaking out, but I must ask just in case.

Just tonight I had been masturbating for sometime, using clothing as to catc all precum instead of it getting on my hand. Nothing hurt while doing this, so I kept on going, until I finally came. Only thing is, I looked down at my penis because when I touched it skin to skin, it hurt. I see a huge brown spot on my penis and I'm like "what the hell?" and turn the light on. I had scraped off a large portion of the top layer of skin on my penis. Around the sides of the injury were black, or dark brown, or something. They were a dark color.

I then proceeded to put anti-biotic cream on it and bandades, just as any other injury. This is fine, correct? It will heal like a normal cut or something would heal, right?