Mike, Sounds like your ferret has ulcers. Ask your vet to do a 4-6 week run of antibiotics. Metronidazole and Amoxi together, plus Carafate, works well I believe on ulcers. There may be other combinations of antibiotics, it all depends on what your vet wants to try. If it's not ulcers, it can be lymphoma. But ulcers are more common. Laryssa [Posted in FML 6313]