Mel,
Gotta be an infection still raging in there somewhere. Have you done a cbc since the dental.
When I had all the issues with Sori, her white blood cell count bounced from 7,000 to 19,000 about two weeks after we finished the antibiotic. They had gotten a clear urine culture. Somewhere else there was an infection. And judging from the bounce this weekend, the infection has flared again.
Hate taking them to the vet, but I think it is time for Autumn to be checked again. May take Sori today.
Claudia