hello , Welcome to HCM There is an important thing about your cough, which needs to be ruled out... i.e infection. If your cough is associated with sputum production, you need to have culture and antibiotic sensitivity and also AFB examination. If associated with chest pain, an X- ray will be helpful. However, if it is only dry cough, you can use some permant home remedies. It is important to understand that all symptoms usually, but not always have a cause, You have to rule it out by visiting the right doctor (say a pulmonologist in your case or even an experienced internal medicine specialist). by appropriate investigations, you must rule out all important causes (TB, other infections, any tumour like mass in lung/mediastinum) and then take appropriate therapy. Hope this helps.