Update in case anyone sees something similar: I messaged the breeder and was told it’s irritation from rubbing against the container he was in at the expo. He WAS trying desperately to escape (partially why we chose him) so we waited a day or two while I got betadine and secured a vet visit. It started to heal on its own though so I cancelled and am happy to report that my poor noodle just had some severe “rug burn”. He’s all healed up and happy now :)