When is it that a sinus culture would be warranted? My sinuses always bother me...stuffed up nasal passages, running like a sieve, painful, pressure, etc, but I have never had a sinus culture done. Is this at all important? Also, do you all tend to give a sputum sample at each of your clinic visits, and if so, do you request it or does your physician? Normally, they don't tend to ask me for a sample, I tell them that I want to give one. I mean honestly, that seems odd that they would not request it...I mean regardless of whether you're feeling well at the time, you never know what my be brewing in there!!Thanks,Jen 34 w/cf