We've recently adopted a shelter dog, mixed American Stafford Terrier. A vague history suggests he was a street dog for most of his life (4 years old) and suffered from mange at some point. Unfortunately, it seems it was so long ago that the hair may not grow back again as the skin has scarred and left him looking somewhat like a steet-fighter...
Any suggestions or "home remedies" to encourage re-growth of damaged/scarred coat hair?