Hi, I'm new to this forum. I'm looking for some help. My cat Kitty who is 3 years old has some swollen back lips. I took him to the vet, but the vet wasn't helpful at all. Told me that he might have got bitten by a bug, but I doubt that's what it is. Another friend who is a cat lover told me that cats get tarter build up, and it might be that. I tried getting a photo of it. Maybe you can all look at it and tell me what you think it probably is. Sorry, it's not the best photo. It's really hard to get a clear picture of it. If you could see it in real life, it looks puffy and white. And just today started to get a bit red.