Thank you, Kate, This lung disease is all new to me and I have so much to learn. I do take Mucuinex 2 X day and use flutter device (Aeroika), Smart Vest, and nebulizer. I have not heard of NAC but I certainly will find out. Thank you for the link. One reason it takes me so long, (I think) is because there is SO MUCH thick mucus, and sometimes I use 2 ampules of 7% Saline to feel that I am half way "unclogged." I wish my doctors had listened to my complaints and diagnosed the problem before it got so bad. I didn't have a clue! I thought it was my heart and a bad respiratory infection for about the 1st two years and that was with a PCP only.