I have a 5 year old Great Dane that started licking her leg right below the elbow and has licked it so much she has licked the skin off and it is bleeding. The vet had me buy this stuff called Allercaine with Bittran II(Said it was a hot spot) but she licks it off and just keeps licking. I have put a bandage on her and she chews it off and persists to lick. I don't know what else to do. I will try to post pics.