@mirsy It makes a difference for me. I think most people mention doing airway clearance of some sort, twice a day. For me it means fewer infections ( none in over a year) and less inflammation. I use postural drainage and the huff coughs most often now.

There are days every now and then, that it takes an extra few minutes for the mucus to start to loosen so I can clear the deep stuff, but I would recommend keeping up with the clearance twice a day, unless the pulmonologist recommends a different approach.