I had asked if anyone knew what would be the problem if my yorkie was licking his anal area and biting his tail a bit...I had given him a de worm treatment first wk of sept and I had him groomed and his anals done firs t wk of sept also..what it was I was giving him a bit to many doggie treats and it made his stool hard so he was licking to relieve this I went to groomer this am and she told me to put a tiny bit of Vaseline on his anal area..i did and I stopped the treats for a treat he gets a tiny piece of raw carrot which he loves and now he is fine..
