Jason has been on TOBI from Sept. through May, on 28 and off 28 for the past five years. I don't believe he has cultured pseud. or any of the related bugs for at least three years - only staph. I am just wondering how others that prev. were colonize with pseudo are treated? I am wondering if he isn't culturing it because of the TOBI or if he shouldn't be on the TOBI any more - I have a call in to the dr's with the same question. Just wondering what other's have experienced. Thanks.