Coughing can be caused by a variety of reasons, commonly due to choking on foreign objects, exposure to allergens, and respiratory infectious diseases such as acute pharyngolaryngitis, acute bronchitis, and pneumonia. 1. Non-stop coughing may be caused by choking on food or foreign objects in the airway. The inhalation of these objects may cause the patient to cough incessantly, and the patient may often be accompanied by dyspnea, cyanosis and other related symptoms. 2. Coughing may also be related to allergies. Allergens cause spasms in the pharyngeal trachea and even edema of the tracheal mucosa, leading to coughing. For this kind of situation, we should try to avoid contact with allergens. 3. Coughing may also be associated with respiratory infections, such as acute pharyngolaryngitis, acute bronchitis, pneumonia, tuberculosis, etc. In addition, non-infectious diseases may also cause coughing. In addition, non-infectious diseases can also cause cough, such as cough variant asthma, gastroesophageal reflux stimulation, upper airway cough syndrome, pulmonary fibrosis, lung tumors. In conclusion, cough may be caused by a variety of reasons, it is recommended that cough symptoms fail to improve or even gradually aggravate, need to consult a regular hospital in a timely manner, with the doctor to improve the examination, standardized treatment.