Hi Rosnatale3, I have not used the glutathione yet. The link I sent has the directions. I will be trying it out once I receive the product.
As far as saline goes, my dr initially vetoed it. But, because of the research info and the supportive comments by our group members, I kept after my dr for a Rx. She finally agreed. Since she was apprehensive, I decided to start out with the 3% solution. It was well tolerated so I switched to the 7%. Since using it, my cough has improved a lot. And, yes, when I neb with the saline I cough. I look at it as a positive thing. I am bringing up mucus and isn't that what it's all about? Getting the mucus up and out of the lungs.

By the way, you need not depend on your dr to prescribe the saline. You can get it on Amazon - https://www.amazon.com/gp/product/B09X65F4PB/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Or, if you want to save money, get your dr to write a prescription and use GoodRx coupon - https://www.goodrx.com/ As for Medicare, I am not familiar with it and do not know if it covers the cost.
I hope this helps. Best of luck to you!