Must be a Flemish thing here lately. My big girl, Chyna, is also suffering from an abscess.
An abscess in a rabbit is a particularly difficult infection to treat....a limited number of rabbit safe drugs, the pain, secondary infections, the pus is very thick and difficult for drugs to penetrate and the anaerobic bacteria in the core of the abscess.
My normal treatment protocol is a very precise combination of Pen G (a specific combination of Procaine and Benzathine) along with high end dosing of Zithromax. I do not open abscesses. I can't say that I will never open one, but it's something I have never seen the need to do. It is very important to offer husbandry support in the form of nutritional and hydration therapy as well as pain management. Chyna is currently receiving daily injections of Penicillin and an oral dose of Zithromax, extra high quality food with appropriate supplementsand a combination of Metacam and Tramadol for pain and swelling.
Most vets do not know how to treat an abscess in a rabbit. This can lead to some serious side effects. If you can't find an experienced rabbit vet, if you can find one willing to work with me, I can walk them thru the treatment. It is not a quick fix as these infections take time and effort to resolve. And if the teeth are involved, that brings on more talk.
Randy