Frequent coughing even after bronchial tuberculosis has been cured needs to be considered in conjunction with other cough-causing conditions, such as chronic bronchitis, pneumonia, smoking, or environmental irritants. 1. Chronic bronchitis, due to infection with Mycobacterium tuberculosis can produce damage to the bronchial tubes during the period. After recovery, although the tubercle bacillus is killed, the bronchial tubes are not fully restored and gradually develop into chronic bronchitis, which can cause frequent coughing symptoms. 2. Pneumonia, which may be combined with bacterial or viral infections in the lungs, causing pneumonia manifestations. Then it can affect the trachea and bronchial tubes, resulting in the performance of coughing symptoms even though the tuberculosis is cured. 3. Smoking or environmental irritation is also a possible cause. In particular, long-term smoking or in the environment of irritating gases such as oil smoke, frequent coughing can occur. In addition, cough variant asthma, eosinophilic bronchitis, gastroesophageal reflux stimulation of cough, secondary bronchiectasis and many other diseases may cause frequent coughing, it is recommended to seek medical attention in a timely manner, under the guidance of the doctor for examination to clarify the cause of the disease, and at the same time, according to the doctor’s instructions for treatment.