>>6, while I do know that, I don't always do it. It's simply part of the addiction that I don't take care of my own wounds. Hard to break a habit you've been doing since you were seven.
That said, when it comes to treating wounds, even if it's a small one and doesn't look infected at all, hydrogen peroxide is something you should always apply to your wounds. (I am aware of how much of a hypocrite that makes me sound like. But it is what you're supposed to do.) Then the antibiotic ointment and bandage.
If something happens and it's too big a wound for your first-aid knowledge, apply pressure to the wound and tell a specific person to call for help, be it an ambulance or campus security.