What is this?

[DVirginiana]

Thank you, the nearest vet is closed at this point but I'll be bringing him as soon as possible, and I'll see if I have any. Anything else? As far as pain goes I don't think he's in much pain as he idn't flinch or do anything when I just touched the effected area. He's acting completely normal.

Burns can be funny. It can take awhile before you see the true extent of damage. Hopefully this is minor and will get no worse than just reddened skin, but you may see blisters start popping up in the next day or so. If that happens, switch his bedding to paper towels, since you don't want substrate getting into an open area or prematurely popping a blister.