I have been coughing since September. I caught a bad flu and after that I can't stop coughing. I also went to Asia for the first time in October and with the recent typhoons there, could I have made it worse. I used Biaxin (anti-biotics), started with Symbicort (puffer), then on Alvesco and now I am on Nasacort, Advair and Aerius. Is this a post virus cough, asthma or something else...your thoughts?