No, don't smoke. Good idea about allergies though. Will get onto that. Thanks.
If you smoke, that could be the main problem...IF YOU DO, PLEASE QUIT. I was a 46 year smoker & went through repeated viral bronchitis until I quit. I also had repeated bronchitis which my inhaler CAUSED. Also, some medications cause rebound viral infections. You might be allergic to something in your home or work place. If I were you, I'd go to a pulmonoligist for tests.