Thank you all for your responses. I'm sorry for taking so long to respond, it's been a hard few weeks. I made the decision to put Snowball down this morning so she's in a better place now. The filth on her face got better and she was acting perfectly normal (purring, jumping up on my lap to...
My cat Snowball, who is 15 years old, was recently diagnosed with oral cancer. Apparently there is a tumor under/on her tongue... she also has failing kidneys.
Among a ton of other problems, I've noticed (it's hard not to) that her fur/skin is turning brown. She's licking herself a lot and I'm...