Hello, I have two Southern flying squirrels I’ve had for 8 years. One was given to me and he was already grown so I’m estimating him to be either 9-10 years old. Over Thanksgiving his right eye started to swell above and below. There is something white in the corner. We took him to our vet and they gave us steroid drops drops which we faithfully put in his eye for 10 days. It wasn’t helping so we stopped. It is now swollen worse than ever and now it’s red and irritated. It hasn’t affected his appetite and he is still very active. Can anyone suggest what I should do next. Could it be a tooth issue, or a tumor or possibly an infection? I can take a picture and post is it will help.