My son Charlie who is 9 years old seem to have more sinus problems than lung issues although he is on Tobia for his lungs. He always recovers from it and within 3-4 weeks is coughing again. We seem to be on every kind of medicine for it like nasal spray, pulmozyme using mask to get to nasal passages, etc. Does anyone have the same sort of thing and what do you do to control it? Thanks for your help!