Make sure to use the stuff your vet prescribes, and not the stuff readily available at most pet stores - with such a little dog, I wouldn't risk him...
This story is about four Boston Terrier pups that got mange from their mother. They would have been okay, had they received the proper medical care....
I hope the vet comes up with something! I suggested the vitamin B12 because once we had a dog that went off his feed and the vet gave a B12 shot and...