<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hello doctor,I have asthma and I smoke 1-2 cigarettes daily and trying to quit permanently and often I get cold and chest heaviness and nowadays having shortness of breath and pain in the lower right chest and in the back. 2 months I did chest CT scan and pulmonologist said I also have mild bronchietasis . he suggested me to take mucinac.I live in Bangalore  <response>: Hello are an asthmatic patient, having chest heaviness, shortness of breath and PAIN IN THE LOWER RIGHT CHEST also in BACK according to query . The most disturbing thing is that 2 months back, you got C T scan. Diagnosed as mild degree bronchiectasis, and you doctor advise you MUC INAC i.e. acetylcysteine, bucolic agent. All these symptoms are from last 2 months pain in lower right rib, with back pain, shortness of breath and also a smoker, these symptoms may be due to these possibilities these include:1 Pleural effusion, diagnosis can be confirmed by LATEST X-ray chest .2 Thickened pleura, again diagnosis can be confirmed by X-ray chest. Quit smoking at once, consult a pulmonologist and get his opinion as all these symptoms are a cause of CONCERN. Hope this will help you. 