Originally Posted by ztarwarzchic
When I first got one of my ratties she was sneezing a lot. And I mean all the time, with snot coming out (sometimes) I took her to the vet and they said she had bacteria in her lungs that was comman to rats. Now she's on an antibiotic that goes on the water for a week of everymonth and shes fine. If the sneezing persists, i would see your vet.
Your vet was talking about mycoplasmosis (or commonly known as myco)...it is in all domestic rats. The problem with myco is that it overcomes the immune system and it allows a flareup. The secondary infection is what really makes your rat sick.
Just a word of warning to others, an antibiotic that you put in water is not considered a good treatment any longer but was
accepted years ago. There is no way to regulate how much antibiotic a rat will get (dosages are very important when your rat is ill), the meds may make the water taste bad so they won't drink at all and get dehydrated, and if you don't scrub your bottles everyday and refresh the water/meds you are asking for bacteria buildup.
A very common antibiotic that vets say to put in water is Tylan and its not considered very effective any longer, especially since baytril and doxycycline are readily available and work much better.
Back on topic, a lot of rats go through what I call "the new home sneezies". If it doesn't clear up and lessen in a week or less you may have a URI (upper respiratory infection)developing. Watch for porphyrn in the eyes and nose (beyond the morning cleanup), lethargy, puffed up fur, lack of appetite, wheezing or congestions, etc.