Hi all, our 1 year old GSD Smedley has had a problem with his ear tips for the last 4 months or so. We took him to the local Vet and they were not much help. His ear tips are crusty and hard and in some places small parts have fallen off. He also scratches behind his front legs between his belly and chest area and nibbles/bites above his front paws. So far no blood has appeared around the tips of his ears and oddly enough does not scratch his ears either. What could this be, is it maybe ear tip vasculitis where not enough blood gets to the extremities ? And could changing his diet to raw only and no grain/kibble help ? Right now he eats a mixture of kibble with raw food. We give him Royal Canin GSD puppy kibble and just regular raw ground beef. Thank you for any help.