Natural Remedies to Help Heal Horse Wounds

I have read elsewhere that Nu Stock ointment is very very good for wounds, especially abscesses, that will not heal. People are showing photos. Also I have read that it helps clear mange on dogs and cats (although it has the possibility of causing indigestion in cats) I haven't tried it myself (yet), as I'm still trying to figure out if my cat has mange but I read it on so many sites I wanted to pass it on here.