My 3 year old daughter has a bad cold and is coughing constantly. She doesn't currently have any lung symptoms with the CF, only PI. I have doubled her vest treatments and have been doing albuterol nebs once a day, which she only does when she is sick with a cold/cough since she otherwise never coughs. She will cough almost constantly for 2+ hours while falling asleep. Her pulmonologist said she could prescribe saline that we could nebulize before bed if she continues. Her lungs are clear, so it is due to bad post-nasal drip. Any suggestions??