My little guy has a puffed left cheek, noticeable, since Saturday . He is in obvious pain and his behavior has me very concerned. It is interesting that the fur sticks out on his left cheek making it look much more puffed up, but when I palpitate it, I can't feel a large pus filled area, but he reacts with a moan indicating it hurts him. I am thinking it may be just in the beginning stages. I have an appointment with a vet today at 1:30 pm EST. I respect the advice so much from those on this site that I would like to know if there is an antibiotic that seems to be more effective or is safer for an adult squirrel. He is about 8 years old. Thank you very much for any input. I hope I am not offending anyone by posting in the life threatening section but I know these little guys can go down so quickly, so my level of concern is at it's highest.