Make sure they are drinking water daily and eating their food. Watch for signs of fleas, or mites, check for diarrhea, or any unusual lumps. Eyes should appear bright. Rabbits should be handled regularly so they are accustomed to human hands. Then if they do require medical attention, it will not be a traumatic experience for them to be handled.
Respiratory disease is a major cause of morbidity and mortality in rabbits.
If your rabbit is sneezing excessively, and appears to have a very wet nose, and signs of nasal discharge on the inside of the front feet from rubbing its nose and eyes, consult a rabbit breeder or veterinarian for advice. If overlooked, this infection can progress from the upper respiratory tract to the lungs and cause pneumonia and death in a relatively short time. Ear mites may appear at any time, manifested by inflammation and crusting in the external ear canal, causing rabbits to scratch the ears and shake their heads. You should not attempt to clean out the crusts, since this is painful and will bleed. Therapies can be recommended by your veterinarian, and may include topical application of mineral oil, liquid acaricides, or flea powder.