My boy Hank has been chewing his paws and fur off his hind legs around the base of his tail and on the front of his "knees". He has been on antibiotics for skin infections 3 times already in his 14 months. His vet says allergies to grass or food (but doesn't seem too concerned) but we haven't seen grass in 5+ months. Hank takes Benadryl to help with itching. And I changed his food to a lamb and rice formula a few months back and saw immediate results, but now he's back at it in full force. I also wonder if this might be an anxiety thing too? Help he's starting to look so shabby.