My brother USED to have Cystic Fibrosis. God healed him completely and miraculously. I am reminded of some Lung therapies, such as percussion Techniques using cupped hands with fingers and thumbs together as opposed to slapping. The therapy recommended back then had you lie on your back, set the timer and someone double handed percusses the back over both Lungs . This is repeated on the front. I haven't found a demo for that yet, so perhaps it is recommended differently now. I will post several Lung therapy videos that you and yours might be able to glean useful information from.
