I have penile tear up from musturbating, what can i apply to the wound around the head?

Depends on details: Everything in moderation (means don't overdo anything). Too much penis friction, too much nose-blowing, too much shoveling, too much bicycling, etc., can all damage any overused body parts. A penis is quite durable and provides its owner with decades of full function despite small traumas here and there. A tiny tear usually heals up without any treatment. Doctor can do an in-person or video exam.