@kathyhg I too experience coughing using the 7% saline. Some days I can't quite finish the neb, but unlike medication where it is necessary in order to get the full dose, I figure that's fine. The purpose of the saline is to irritate the lungs to bring up the mucus, so if I'm doing it, the job is done. I do try to get as much as possible because I know the saline also helps suppress the MAC, but hey, you do what you can. By the way, I also noticed I can actually taste the saltiness of the mucus several hours after the treatment, so I must be getting plenty. Also, initially I was using 5ml vials, but the last Rx was for 4ml - the pharmacist says he can even get 3ml. His take was that at 5 feet and 100 pounds, the smaller dose was probably plenty for my body. How large are the vials you are using? Sue

Hi Kathy, Like you I cough and bring up copious amounts of mucous while using it but I figure that's the goal and it's sure doing the job like nothing I experienced @ 3%. So despite the nuisance, I just keep tissues handy and welcome the impact it's having. Don

@kathyhg, Just bear in mind, this 7% saline is supposed to irritate you into a coughing spasm. That is how it works to bring the gunk up. I am so used to 7% now that it doesn't even phase me. I wish it did!