Tempt the rat to keep eating with tasty treats such as cheese, if necessary. http://EzineArticles.com/?expert=Colin_Patterson, Server Hiccups and What I'm Doing About It, IAMS Home 4 The Holidays 2010 – 1.1 Million Homeless Animals Adopted In Just 96 Days, Pet Education For The Holiday Season – Tips For New Owners. What should I do? We have six pet rats. The chronicity and severity of the infection depends on multiple factors, so supporting your rat’s immune system is a great way to give them the best chance of a long, happy life. Respiratory disease can cause rats to be lethargic, sneeze often, and wheeze. With meds, he should clear up in a week or two and be fine. /* 336x280, PetLvr Blog */ Secondly, rats are also sensitive to new smells (especially strong ones) in their environment and some of these may become harmful after inhaled over time. That’s an infection! Is she ill? Wash their bedding with unscented detergent a couple times a week if they have fleece. Dr. Elliott, BVMS, MRCVS is a veterinarian with over 30 years of experience in veterinary surgery and companion animal practice. But not wheezing at all what should I do? * Avoid formulas containing alcohol.