The Unhappiest Kitty in the World

Galen had to go to the vet. Again. He managed to cut his mouth, and it got infected. Again.
This time, instead of biting his own lip, we think that he bit a small Christmas light in half.

I don't know that that's any comfort.
If he keeps getting these infections - especially if they happen without any visible injuries - the vet wants to do a biopsy to check his immune system.