I've started Arch on some 3% Hypertonic Saline and I add his GSH to this. Just wondering whether it is normal for them to cough heaps...especially at the beginning. He has an asthma component to his CF so I give him his puffer prior to the neb. Normally when I use GSH with normal 0.9% saline, he coughs occassionally but the HP saline really seems to get down deep. HE says it makes his lungs feel good but makes him want to cough a lot. Just wondering if there are any warning signs I should look for when using this solution?