Do you mean a Band-Aid type bandage, gauze that you use tape on, or an Ace bandage? I think the gauze kind would be the hardest to do yourself. I would cut or fold the guaze to the right size. Then I would lay it on an x of tape, sticky size up. Then I would put tape around it, sticky side going the same direction as the x. I would lay it on the table, counter, etc., sticky side up, position the boo-boo over the guaze, and press the tape to my arm. I hope this makes sense--I'm sick so who knows what I am writing!