How old is your daughter? How old was she when she began to grow mucoid PA? Is there antibiotics she is resistent to? We worry about doing Tobi every other month because of the resistence. So far she is very sensitive to all the PA drugs, but I don't know how long that will last. Glad your daughter is doing well and I hope the GSH will help her a lot. Keep the website posted on how it is working. We use the Pari compressor and nebulizer because the trial research studies were done using the Pari and our CF clinic won't prescribe any other brand. Apparently the Pari puts out the smallest particles and therefore the medicine is able to get deep down into the small airways. You might want to look into this. It's important.