Vent looks absolutely horrifying.

[Bizzle]

Those pictures look like scale rot or thermal burns to me.

I've checked the temps and haven't found anything different from the past three years, but is there anything I could be doing until Monday if scale rot/burns could possibly be the case? I google'd up some images of scale rot, and while I was too busy freaking out of the puffiness surrounding the vent, that the redness could have been the start of scale rot. Nothing smells or is flaking off, though, so I'm glad I obviously caught whatever this is super early.

(though I am totally not going to get any sleep until he sees a vet)

ETA: oh hey one of the symptoms of scale rot is blistering. I AM A HORRIBLE SNAKE MOM. I'm. Going to be over here, feeling like scum.