Hi Elaine, as
extracare808 said, it is important to get as much information as you can and see someone who specializes in MAC. Also, whether you take the antibiotic regimen OR decide not to be treated, it is really important to do airway clearance. For many of us this involves inhaling 7% saline solution with a nebulizer, using an Aerobika, and huff coughing. There is much information in the National Jewish Health website, NTMir website and BeClearToday.com. YouTube has many videos of webinars from NJH and NTMir.
7% saline helps make it inhospitable to the bacteria as well as helping get mucus out where the germs love to grow.
extracare808 has given their account of success with taking the antibiotics. I have been successful without taking the antibiotics and using airway clearance techniques with 7% saline.