Justin, last time I had a sore on a back leg on Thais, I put a cone on him.
Next day it was all licked clean anyway, because his buddy Sam helped him.
So I took a some Bhut Jolokia hot sauce that I had in the fridge and applied it around the wound with a q-tip, being very careful not to get any in the wound.
That stuff is something like 3 gazillion Scoville.
No more licking after that.