Parker had his CF visit yesterday and while they were thrilled that he has put on 10 pounds in 4 months, they commented that his lung function could be better. The doctor talked about using Azithromycin three times a week to improve his lung function. This initially made sense but then I had some questions. My big one is that doesn't this set him up (and the rest of the house) for resistant bacterial infections? Does anyone else use this method or something similar??