This is my precious baby willow, I noticed that lip is swollen (looks worse irl she just didn’t want to cooperate for a photo) and I was wondering what could have caused it. I know it isn’t anything to do with her food bowls as they get cleaned weekly. She can go outside but never leaves the garden and tends to just sleep in a bush when she does leave the house but I’m unsure about what could’ve caused her lip to swell.