On Wed. I had my 9 month old puppy cut and a few things concern me. Peanut Butter is not eating his morning feed (but eats his supper) and I noticed a slight amount of pus were he had his operation. His behaviour and energy level are returning to normal. He isn't licking it much either but it was very red on Fri but the colour has gone down and now looks a lot better. How much should I be concerned and should I contact the vet? BTW I am now in the process of switching him over to adult food gradually.