Katie,
I asked the CF dr. about this just last week. I wanted to know when should I call about an increase in cough, now especially since Kayla is culturing Cepacia. He said that all kids catch common colds, and of course kids with CF do to...he said that a common cold should last about a week. IF there is still an increase in cough after one week, with no signs of improvement, then to call them at CF clinic. An anitbiotic would then be in order.
And as far as not being able to culture Psuedomonas when Staph is present...NOT TRUE! My younger daughter has cultured Staph as well as MRSA AND Psuedomonas, all at the same time! I have heard that 'theory', and maybe there is some truth to it, but it can in fact happen.
I hope Ellie gets to feeling better really soon!