Echinacea and Vitamin C always worked a lot for me but not when I was still subjecting myself to what was actual the cause of my symptoms it didn't. Trust me I would get upset about the doctors suggesting I quit... so much that it took me years after to do so, but that was the ultimate cause for me personally with the reoccurrence. Oh I should mention that and going into smoke filled clubs. It was part of my job at the time, now I would be clogged up if I even entered a smoke filled room.
Do you have any other allergies that could be triggering this?
U should try eating a grain of garlic everyday for d cough. I kno it sounds kinda stupid but trust me it works.. It's just alittle home remedy...
I am a reformed smoker, it has been about about 13 years since I quit. Before that I had chronic problems with my sinuses. It occurred every 6 months. In hindsight I think I was allergic to smoking and my body was reacting the way it was supposed to. And yes I was stubborn did the yo-yo smoking and getting sick and going to the doctors wondering why I was sick. Since I quit I have not had to go on an antibiotic for sinus infections ever again. Wish you luck :D Keep us updated.