If it looks bad- call the vet. Otherwise- when fenway is asleep, put a little regular neosporon on it. If he wakes up rub his head and try to keep him from licking it for like 30 minutes it will soak up. Put it on like 2-3 times a day. Its probably a razor burn from the shaver/ clippers . I would call the vet so they know he has a razor burn- the tech should have been more careful.