My 5 month old was diagnosed with RSV in the beginning of March. Her lungs stayed clear thank goodness. They said that she could have lingering efects of it for up to 3 months or so. Well now going on 2 moths she seems to be throwing up lots of mucus and has just started Zyrtec for allergies because she has been congested for almost a month. Does anyone know of any infant having CF and getting RSV and how it efected them?