I have struggled with MAC and bronchiectasis on and off for over 25 years, and have gone through 2 extended cycles of the 3-drug protocol. Slightly different each time. I'm not sure I am completely MAC-bacteria free now, but I have been without the worst of the symptoms for a few years now. My pulmonologist has me on a twice per day nebulizer protocol of Albuterol and 7% saline. When this started several years ago, Medicare Part B (not Part D drug coverage) was covering the Albuterol and 7% saline with small copays. A couple of years ago they started refusing to cover the 7% saline, saying it was not a Medicare-approved treatment. My pulmonologist and several pharmacists have appealed to Medicare that this is a standard treatment for bronchiectasis, but were not able to convince them it should be covered. I have been getting one-month supply of the 7% saline (4 ml x 60 vials) at Walgreens for $10.28 using a GoodRX coupon. But just this week, Walgreens, and CVS, have told me the 7% saline 4 ml x 60 vials is "on backorder" and no availability date is given. I am at wits end about this. I just learned about availability via Amazon, though that is 50 packets for about $35, a huge increase. Any suggestions where to turn appreciated. (FYI: I am a 74 y.o. male). Thanks for listening.