No that is not an axanthic, and no I have not been to a vet, nor has the owner of this snake. Unfortunately we're both in an area where vet 'expertise' doesn't count for much.

And no it was not a thermal burn, it was either a sensitivity reaction to newspaper or from contact with fecal matter. It started as two patches of blistered cells, and now the lower 3/4 of the body look like that. Now that the swelling and redness has gone away.

His temps are 73 on the cool side and 89 on the warm. As I mentioned he is being kept dry during recovery.

This is what neglect looks like (different snake):