I need help

[Steph20188]

Hi,I’ve had this male for a few months now, when he was bought he had a some what chubby face but nothing the vet was concerned about when I first took him in to be looked over, a month later he had gotten a heck of a lot worse so I isolated him from everyone else and took him to the vet, they said it wasn’t ri or mouth rott they thought it was an abscess , so we got injections and sent home, few weeks later wasn’t any better so we made another trip into the vet, same thing just a diff medication, STILL NOTHING! No change , I’m at a loss and don’t know what else to do for him , he’s about 4 , weighs 1334 grams , in rack system , hot spot of 90, never misses a meal has perfect sheds, hasn’t lost weight, I’ll insert pictures. Please any suggestions would be great! Nothing rude I understand people will be but I’m just here for help.