Penis skin got damage due to accident.

My penis skin is damage due to an accident while traveling, now I want to get it repaired by I have taken all proper medical ad , but now there is some internal sensitive occurring when ever the penis erection happened now doctor have given me a drugs that can slower the erection process but still I find this was making me little lazy now I am in search of a proper drugs which can slower the penis erection at night especially because whenever I woke up in morning I see my penis is very hard and well erected, now I am looking for a drugs which can help me in night to decrease or eliminate the penis erection this will help my penis skin and muscle to relax and offcourse it will help to re generate new tissues of penis skin. I think I am not asking something very critical it's common thing if the body part is physically damage and once we give him proper rest it can regenerate to the optimal. i request to kindly prescribed me a decent drugs which should help me out !