He is 2 1/2 years old and is a long haired dachshund. He always compulsively licks himself or "sucks" by just leaving his mouth open sort of along the side of his body, especially above his hind leg. He licks it all the time, and I don't know if it's out of boredom, stress, or a rash? It's not red or infected at all in the area that he licks, he just licks his fur continuously until to the point that it is soaked with saliva. :/
Any reasons?
Any reasons?