Q: Recently, my rabbit was treated for snuffles. He seems back to normal, but our vet says he's not cured. Is it possible to kick this infection?
A: Not always. Widespread in the rabbit world, snuffles is a highly contagious upper-respiratory infection brought on by bacteria (typically Pasteurella multocida). Infected bunnies have runny noses and watery eyes, and might also sneeze and cough. A healthy rabbit's immune system is usually capable of fighting a mild case of snuffles, but more potent strains prove difficult to combat.
Antibiotics can successfully treat the infection, but sometimes the bacteria may linger, dormant, leading illness to recur months or even years later. Meanwhile, your bunny could still be contagious. (I wouldn't recommend isolating him forever, but if you have other rabbits, do separate any that show obvious signs of snuffles, and wash your hands after handling each rabbit.)
Moving forward, keep an eye out for indications of a relapse, so you can nip the problem in the bud before it becomes serious: Snuffles can lead to pneumonia, an often fatal complication. Early treatment is key to ensuring that your floppy-eared pal lives a long, happy life.