I believe it prudent to have a vet check your dog first to illiminate parasite or allergeies they may be responding to. If there is no medical reason it may be as simple as they are BORED and need a job or something to keep their interst away from biting themselves. Dobs have to have jobs to do to keep them mentally challenged. Hope this some insight to your question.
Answered by Anonymous - 1/11/2013 10:17:02 AM