If get MAC a second time, how is it treated? What did you do?

Hello - this is Pam in Sudbury, MA. This group has been very helpful to me over the years since I joined and I now have a question which someone out there might be able to help me with:
I was diagnosed with MAC in 2015 and went on the 18 month regimen of the Big 3 antibiotics. It did clear up the MAC but ever since I have regular episodes of Pseudomonas which I knock back with Levofloaxin for two weeks. I was just told that a sputum sample sent off some months ago has come back with a positive for MAC again. Of course this is very discouraging though I was told we never really get rid of MAC; it is always there, waiting to come back at some point. Has anyone in the group had this experience of getting it a second time? The odd thing is has to do with coughing. I am not coughing at all. When I was diagnosed in 2015 I was coughing my lungs out, and had been for several years. So now they say the MAC showed up in the sputum sample but I am not coughing. Is this typical? If you did get MAC a second time, how was yours treated? I have made an appt to see an infectious disease specialist for MAC but could not get an appt until January. My lung doctor wants her to decide how to best treat me. In the meantime, I wonder about others who may have contracted MAC for a second time and how they dealt with it. Thank you, Pam