My 2 1/2 year old son w/CF was diagnosed right before his 2nd birthday. He has been on antibiotic since he was one though to try and keep his sinuses clear and free from infection. I know there isn't a "norm" when it comes to CF, but does daily antibiotics go hand in hand with having CF? Is it harmful for the body to be on them constantly? Are nasal inhalers/nebulizers better to use than oral antibiotics when it comes to dealing with the sinuses. Any info or personal experience is appreciated.God Bless!