Hi Lulu,
Welcome aboard! I was diagnosed with MAC just before the pandemic. I had a very bad chronic cough and chest congestion but, other than that I had no troublesome symptoms. My pulmonologist offered the 3 antibiotic treatment which I declined due to the potentially awful side effects. We decided to take the "wait and see" approach. I get annual CT scans, give sputum samples and have occasional bronchoscopies. It has been 5+ years and, so far, so good. I exercise, think positive and follow a Mediterranean diet. My daily routine is as follows: I nebulize with 7% hypertonic saline while simultaneously using a airway clearance device called Aerobika. Following this, I do 20 minutes using my HillRom compression vest. I do this faithfully every single day. Airway clearance is Very important and is not to be missed, no matter what. The saline was a game changer for me as it creates an unfriendly environment for the MAC bacteria to thrive, thus slowing its growth. I would consider asking my doctor about the things I've mentioned to see if they may be an option, depending upon your condition. Please know, everyone is different and this is what is working for me. Below is a link to airway clearance information. I have learned a great deal from the wonderful participants in this support group. Please know you are not alone! Best of luck to you.
https://bronchiectasis.com.au/resources/airway-clearance-videos