Nic bee
Junior Guinea Pig
Hi, I'm thinking I'm going to have to visit a vet for proper diagnosis but as my boars are still in early bonding stage I'd rather not separate them if I can treat this issue at home so hoping for some advise.. I've attached some photos, it's only on the outside of one ear, no sign of any mites - he's 3 years old and otherwise healthy, new to my home so wouldn't be surprised if he's stressed (read this can cause fungal infections).