A very frustrating skin disease found mostly in dogs is called acral lick dermatitis (ALD), commonly know as a lick granuloma. (lbah.com)
Also known as acral lick dermatitis, this problem begins as an area of hair loss and reddened skin most commonly on the top of the wrist or carpal joint on the front legs. (glenerinanimalhospital.com)
Acral lick dermatitis: a skin disease caused by an animal's licking a localized area excessively, especially on the legs and paws. (thedogplace.org)