What does it look like? My sister in laws kitty, Tom Cooter, went to the vet this morning because of a sore on his head. I don't know if he is digging at it. I didn't see him scratching the other day when I was there. The vet said it was an allergic reaction of some kind. But he did do a scraping I think to do some tests to make sure. Cooter was given a shot in his bum. I hope Hermes is able to heal up.