Is this a rabbit savvy vet, or dog/cat vet that “sees rabbits”? You never getting the same vet twice makes me wonder, because typically a clinic only has 1-2 exotics vets and then the “regular” vets that aren’t qualified in exotics, never seen one with a full staff of exotics vets before.
How often is he sneezing? Is it daily? How long does he sneeze for? Does he have a discharge coming from his nose (runny nose from clear to milky white)? Have you requested a culture? Did they look in his nose to check for redness/irritation? Or did they JUST listen? When he’s on antibiotics, does he stop sneezing? Next time he blows out the white stuff, can you save it in a ziploc bag so they can see?
5 days is hardly enough to kick anything out of his system if he has a URI. And just because his chest sounds clear on a scope, doesn’t mean he doesn’t have a bacterial infection. My bun gets discharge, sneezing fits, a red/irritated nose and gets to the point she’s sneezing so bad she chokes and her chest still sounds clear, which is all my vet wants to see her back in to check, because he said if she begins to have odd noises with her lungs then her infections will have gotten more serious than just refilling her prescription (2 weeks of antibiotics) every so often to combat the sneezing.