Here’s a BB forum I found! Aww poor guy! Wishing you a speedy recovery!

Pasteurella Multocida

Pasteurella is one of many types of bacteria which can cause a URI (upper respiratory infection) in rabbits. Many URIs are very much treatable because we have access to antibiotics that will kill the culprit. Yes, pasteurella can sometimes be chronic, but again, not every sneezing rabbit is linked back to that particular bacteria and can be treated successfully. Did your vet run a test or let you know based on the symptoms?

Regardless, baytril is a commonly first-used antibiotic to combat whatever bacteria may be causing the URI symptoms. In many cases, you may need to do trial and error. There are times that baytril doesn’t kill the bacteria, but another antibiotic (for example bactrim, or penicillin injections) does. There is also a somewhat common ‘mistake’ of discontinuing the antibiotic too soon, and this is noticeable when the URI symptoms come back. An antibiotic course, in my experience and what I’ve read of others’, should be at least 14 days long, if you feel it is impacting the culprit bacteria. If no changes are happening, then it might be time to consider a different antibiotic.

Totally agree with Wick. Pasteurella is not the only cause of URIs in rabbits. The good news is that Baytril is a broad-spectrum antibiotic that should take care of the problem regardless. If whatever it is happens to be resistant, then don’t give up. There are other antibiotics that can be tried. And yes, treatment often needs to last longer than is often prescribed.