There are many reasons for violent coughing, which should be specifically analyzed and judged as follows: 1. Inhalation of foreign bodies: there can often be violent coughing, and patients can also have symptoms such as wheezing and even difficulty breathing while choking. 2. Allergic coughing: some patients can also be exposed to irritating dust, fumes and allergic substances, which can lead to allergic coughing, especially in patients with cough variant asthma, who can develop a violent 3. Respiratory infections: Patients can also cause violent coughs, such as acute bronchitis and pneumonia caused by Mycoplasma and Legionella infections, and some viral pneumonia can also cause violent coughs. 4. Tuberculosis: Care should also be taken to rule out the presence of tuberculosis, especially bronchial tuberculosis patients are more likely to have violent coughs. 5. Lung cancer: Clinically, patients with violent coughs can also be caused by lung cancer, and lung cancer patients sometimes have coughs that are Patients with lung cancer sometimes have a more violent cough that is difficult to relieve. In conclusion, patients with severe cough should be treated for the cause of their cough in order to better relieve their cough and condition.