Rabbit w/ Snuffles

Question
My 5yr old neutered male mini lop has been fighting snuffles since the beginning of March.  Basically has whitish discharge from nose (nothing from eye or caked on dulap or paws) He has had a round of baytril, injectible pen-G (4 shots), a round of baytril and chloramphenicol (was symptom free for about two weeks then returned) another round of baytril and chloramphenicol, and is now on metronidazole and baytril.  He responded positively to the metro. and baytril for the first 10 days and now his breathing is back to labored and even a bit whistley and kind of snorting. He kind of makes this horrible yacking sound (especially right after eating or drinking) I suck out what i can in his nose w/ a baby bulb syringe but it seems like i'm getting less and less out.  Doesn't seem to be a tooth prob. (had 3 radiographs - 2 of body and 1 of head) Bloodwork was done but both rabbit certified vets he's seen doesn't seem to be interested in doing a culture and sensitivity test. I hate when he has difficulty breathing.  He is still playful and affectionate.  He does seem to be eating less in the past 2 days (I think b/c he has more trouble breathing then) He's had a past few stressful months - I just graduated and moved.  Anything recommended to help boost his immune system to fight this?  (he gets fresh veggies daily) Medicine recommendations?  Longer treatment? (each round was 21 days long-best response has been to the chlor & baytril but am afraid that he will build up an immunity to it).  Any information will be helpful.  Thank you.

Answer
Dear Amy,

I would find another vet and *insist* on a culture and sensitivity test.  There is no guarantee this is Pasteurella, and its resistance to so many different antibiotics suggests that the infection may be caused by something else, such as Pseudomonas.  Please find another vet here:

www.rabbit.org/vets

who won't just throw antibiotics at the problem as if it were a dart board.  Your bunny needs specific care for what's going on, and the first step is to find out what the pathogen is and which rabbit-safe antibiotics will be most effective against it.

I hope this helps.

Dana