Maybe some will know and some will not know but udder balm (farmers quality not the hand cream) can be used for treatment of damaged skin and wounds (even if these are not superficial). Its a standard product in my gamefowl medical kit. Another good thing is that flies and other insects cannot infect the wound as they are repelled by some of its active ingredients. Its also cheap. It worked for me over the years.
Hereunder the Udder Balm I use from the Dutch farmer shop (Boerenbond)