That is exactly what Ziggy does. It starts as a small scratch and he just licks it to death until it is HUGE! The only thing we do is put salve on it. Once when it got really bad, I took him to the doctor and he said that we shouldn't put anything on it but not to let him lick it. YEAH, RIGHT! Anyway, he doesn't do it often either. If you get any good ideas, I'll be glad to try them too!