Dear Doctors, I am 22 guy. I am suffering cold, cough, dry coughing, and wet coughing. I had a test for T. B neutral. Xray of chest also neutral. I am suffering from this from about 5 years. I had taken ayurveda treatment. I had taken allopathy. This problem comes 1. As Soon as the climate changes. 2. When there is to much dust particles. When I take medicine. Problem disappears for few days and after that I starts again coughing. I had been taking corex for years ago. But now its banned and formula changed. After this coscopin br I had been taking this season. khasi aur shadi to meet hi nahi hai complete year rehti hai no matter how hot is summer. I am frustrated with this. Please help me out Doctors. Thank you.