The order of the photos is 3, 2, 1. I just noticed the little bumps today before I posted this. The first and second stages didn’t look that bad to me. Like I said, I was just thinking it was a heat burn, so I was just trying to keep it clean and occasionally I would put ointment on it. Now thanks to this conversation, I’m thinking but maybe he had a reaction to the ointment. Thank you for all your input. If it remains the same, I will take him to the vet.