I had a CAT scan on my sinus which revealed nothing but I know I do
cough from bronchtis and asthma and what has worked for
me is a bronchiodialator "Combivent". That was also reccomended by my pulmonolgist. Dry hot weather spikes all of this it stinks, too cold and too dry, we can't win. Keep pursuing other allergy meds-nasonex works good for me-i get samples from my Dr. No your not building up dependency--allergies are terrible to fix!!!!!!