I've had this baby ball python for a month. Got him through a successful shed and he's eaten once. But today when i was bathing him I noticed his belly was a little brown and concerning. My immediate thought was that it's a burn. I thought there was a enough separation from him and the bottom of the tank but I'm more than sure this is a thermal burn and not scale rot or anything. He has an appointment with the vet tomorrow afternoon and in the mean time I wiped him with a diluted iodine solution. What does this look like to you? Was the iodine the right move? (Also heating pad is not in use anymore and paper towels were changed)
Pictures:

http://imgur.com/Z1U2jDj

http://i.imgur.com/rCYG7KK.jpg