I just read this whole thread, and I'm sooo glad Kipper is on the mend!
A rabbit with allergies can happen - My Muggs was allergic to HAY!! She would sneeze and her ears turned red. The vet told me to treat her with Benedryl and remove the hay - and she was fine!
My Checkers, as you may remembered, suffered from Snuffles. She would be on 2 week courses of Baytril, then off for 2 weeks. I was told when I adopted her that she would most likely be on Baytril for the rest ofher life.
But, I got some advise from a very rabbit savy friend that proved invaluable.
She told me to give her Euchinesa/Goldenseal solution (liquid, childrens formula available at health food stores) with the Baytril for two weeks, and continue it during the 2 weeks she was off Baytril.
She started to improve to the point that I stopped the Baytril after about 2 months to see how she was without it, while continuing the E/Gsolution. After another 2 months I stopped the E/G too - and she was symptom free for almost two years!
The Euchinaesa/Goldenseal enhanced the effect of the Baytril, giving her immune system a 'kick'.
Also, while she was on Baytril I gave her Acidophilis to replenish the 'good bacteria' in her digestive tract that the Baytril most likely was destroying along with the bad pasturella bacteria.
Checkers had a few more bouts with Pasturella and some other problems that stemmed from it, but she lived to be 8 or 9 (not sure ofher age when rescued) which was not shabby since they told me she might live a year or two! And she had a very long, happy, comfortable life,too!
And that is what I wish for Kipper and everyone's buns!