Cough for two months, you should go to the hospital to take a chest X-ray or do chest CT, bronchoscopy and so on, clear the cause of cough, cough for two months is mostly seen in the following diseases: 1, cough variant asthma is to cough as the main manifestation of a kind of bronchial asthma, a portion of the patient can be progressed to the typical bronchial asthma. 2, chronic bronchitis patients can appear cough, coughing up sputum symptoms, some patients Can be accompanied by chest tightness, shortness of breath and other symptoms. 3, tuberculosis patients can appear long-term cough, can be accompanied by afternoon fever, night sweats and other symptoms. 4, lung tumor patients can also appear long-term cough, need to line specialist treatment to get better. Therefore, the cough can be seen in a variety of diseases, if the cough is not good for two months, you need to do further tests to clarify the cause of the disease, the cause of the treatment.