@lorrainewenn I like your doctor's term "transient MAC".

How many samples do you submit each time? My doctor's protocol was 3 samples from 3 different mornings each time. I actually had times when only one of the three would show positive for MAC and my doc would call it "incidental" - saying it may have come from my mouth or sinuses and not my lungs.

I hope airway clearance with saline continues to keep you well. It was a game changer for many of us who had trouble clearing up MAC even with the 3 antibiotics.

While I was on antibiotics, one time I only produced a single specimen and it was negative, two months later all 3 were positive again.

So it is entirely possible to be up and down