Last Thursday I took 50-50 to the vet because her eye was looking infected. Turned out she had an ulcer on her eye plus an infected tooth. The vet wasn't sure if the infection had spread from one to the other. The ulcer turned out to be a melanoma and was removed. We won't know for sure if it was benign until we get the lab report back. We took 50-50 home the same day and have been treating her eye with drops, plus an oral antibiotic. Cross your fingers.
