@lmh7 Hello,,I too am a "non-producer" and had to have a bronchoscopy to obtain sputum. My doc didn't advise any lung clearance therapy for that reason but I pushed for an got a therapy pulsating vest, an Aerobika device and 7% saline to use in my nebulizer.
I have never coughed or produced after using the vest but I feel it must be "shaking things loose" so I use it 1 x day.
I've never gotten sputum from the Aerobika and seldom use it, although I hear other people have great results w this.
The greatest lung clearance/cleanse for me is using the 7% saline in my nebulizer. When I was at the doctors recently, specifically to give sputum, I couldn't bring forth anything. I had nebbed that morning and the night before and was clean and clear. I had to take sputum cups home and mail a sample in, which I did. The trick for me is to wait at least 3 days to nebulize, then I have enough to culture.
Just yesterday I told my doc I was nebulizing every other day and he asked me to please at least do it once a day to keep my lungs clean and less of a breeding ground.
I think any and all that we do, therapy-wise, can't harm us, only help. Just my thoughts.