Hi Maddy, Well I had to be tested for hearing and sight loss about every two months to make sure that the medicine wasnt effecting those areas, because that can happen. However, there was never any damage and my sight is still 20/20 and my hearing perfect. The rifampin turns (all) your bodily fluids orange, so that is a little strange, i mean even your tears turn orange! But no big deal. I had surgery because the mycobacteria infection had rapidly gotten out of control, due to the fact that we did not catch it in time, merely because the doctors simply were not looking for it or expecting it. This is often the case w/ mycobacteria...doctors might see a slight decline in PFT's, and prescribe meds, or inhaled meds...something that targets the usual CF bugs. However, this doesnt work obviously against the mycobacteria, and because of the nature of the bacteria, it spreads really rapidly and quickly. This is what happened with me...I went to the hospital and my pft's were down JUST a little tiny bit, and my doctor said to give it a month and prescribed inhaled tobi. About three weeks lateri was getting a lot a lot worse with coughing, --the kicker was that i went on a hike with my parents somewhere around new hampshire at higher altitudes, and it spurred a horrible horrible coughing fit that i can still remember vividly. I went to the doctor, had a cat scan and then went home and they called me 2 hours later and said that i needed to come in for surgery on monday. The infection had destroyed my lower left lobe beyond repair so it had to be removed. However, when i cultured positive for mycobacteria again in 8th grade, we caught it in time and treated it so it never had a chance to destroy lung tissue. I have virtually no scarring from mycobacteria, besides the fact i gues that i am missing a part of my lung (!) I have slight slight scarring otherwise in parts of my lungs from other infections. I guess that is the key, making sure that scarring doesnt get to take place, because that is what is ultimately the downfall...when there is such little lung tissue left. And once it is scarred you can never get it back- sad. Anyway, i wish you the best of luck and ask me any more questions if you like, it is interesting remembering it all.-Caitlin