I'm so sorry your son has to go thru this. I don't blame him for fighting it. As far as bronchs goes my daughter hasn't had one but both of my parents did. My Mom had pulomonary fibrosis w/ chronic pnuemonia and had bronchs and surgeries done to try to clean her lungs out but it didn't work. After one bronch her oxygen dropped for a few days and she was worse. It took her a while to recover from it. When my Dad had one he was better after for a few days, but his pnuemonia was so bad he ended up on the vent. I haven't had good experiences with bronchs. I know the cf specialist mentioned doing one for my daughter at some point but I'm going to put it off as long as i can.