@healthybon If you read the thread that begins here, you will get the answer.
https://connect.mayoclinic.org/discussion/mycobacterium-avium-complex-pulmonary-disease-macmai/?pg=923#comment-826637
When you have questions about MAC and all related issues, here is how to search for answers on Connect:
Go to the Support Group home: https://connect.mayoclinic.org/group/mac-bronchiectasis/
At the box "Search this Support Group" type in the key word(s) - like "7% saline" or "side effects"
A list of posts containing those words will come up, and you can read a line or two to see if it what you need.
Hint: At the end of each URL (https:\\...) is a number. The higher the number, the more recent the post. Choosing newer entries is a good way to make sure you will be interacting on current discussions, and with currently active members.

Sue