Quote Originally Posted by Razaiel
(though we think that may have happened too as when our local reptile seller first saw the snake he saw 2 puncture wounds and venom oozing out).

Umm yeah, first I have EVER heard that, corn snakes do not have venom and do not have the right kind of "teeth" to leave 2 puncture marks and if thats what it was bit by, there would not be any vemon muchless 2 puncture marks. I think your local reptile seller lacks any concrete knowledge as demonstrated in his comment that there were puncture marks with venom oozing out. If I were you, I would find someone more knowledgeable who can talk to you locally. Like a vet.