I have found that he is coughing none and his left side on the bottom is now fully open and easily heard.It did make him cough alot in the begining but after a few days his sat 02 went up by 4 numbers to 99 now so it has helped tremendously in his cf care.He has been on ib therapy for a entire day now but i am not sure we will be continuing that due to some concerns we see in him..I am sick with the flu tonight so i am at home.i keep having to get a different forum name because i keep getting my login in credentials are invalid so i have no clue whats up with that but i am sorry for the different names i have to create to be here..