thaks for ur enquery u had smoked around 15 pack years u need to give some more info Is there any wheezing or chest tightness or shortness of breath?????? most probably u are suffering from early COPD chronic coughing with expectoration in a smoker is suggestive of COPD as also cough persists for more than 2 weeks u need to exclude tuberculosis i, myself is a junior resident of chest medicine MD pgt i suggest u the following investigations for that 1. chest xray PA view 2. sputum for AFB for 2 days 3. SPIROMETRY WITH BRONCHODIALATOR REVERSIBILITY the 3rd test is most important if there is obstructive pattern without bronchodialator reversibility u certainly have COPD and COPD is more or less irreversible disease so if it is there u need to start inhalers with bronchodialator and ICS u ceased smoking thats good but u never smoke again consult a chest physician with the report or u may consult me i think u got my points thank u