windwalker I just wanted to report that I received a note from Dr Moua in Rochester in response to my recent culture. He says that there was 1 MAC noted but he did not feel it needed to be addressd at this time. I've been fortunate..... I have just shown minute amounts of MaC (so it seems to me). He went on to say that there was an abundance of pseudomos and that he is prescribing two weeks of Levaquin 500 mg. I have just finished 3 weeks of Cipro and am still coughing moderately. So..... going for a different med. Thought you might be interested that again, a Mayo doctor is holding back on the Big Three.