I am so sorry Boo has a bad tooth. My Tabby had the same issue a few years ago. She had lost her tooth, and months later, the area got infected. She refusd to even let the vet open her mouth! So I was given liquid antibiotics that I put in a syringe and she took that much easier than she ever has a pill. I would wrap her in a towel, turn her on her back and in went the liquid.

Maybe that would be an option for Miss Boo.

Please be a good girl Boo and take your medicine. It really is good for you!