The vet suggested clear deodorant around the area and it leaves a bitter taste in their mouth and dogs won't lick it more than once. Don't put it on the incision, but around the incision. You might want to put a little Neosporin on the incision; some comes with a numbing agent.
Neosporin Plus Pain Relief Maximum Strength Antibiotic Ointment 1oz Reviews. Buying Guides & Consumer Product Reviews - Epinions.com. I'd ask my vet first though. I've also read that people have great success with children's onesie. You just put them on the dog backwards, with the tail sticking out the snap end. Those collars would be great to have on hand!