Cough is a very common clinical symptom in respiratory diseases. Many diseases cause coughing for different reasons, the main ones being inhalation of foreign bodies, infections, allergies, mental factors of the patient, exercise factors, changes in weather temperature and humidity, etc. All these factors may induce coughing. Coughing is a protective breathing reflex that removes secretions and foreign bodies from the human respiratory tract. However, not all coughs protect the body. When coughing is severe over a long period of time, breathing difficulties, chest tightness, shortness of breath and shortness of breath may occur. Common causes of cough: inhalation of foreign bodies, such as sulfur dioxide, sulfuric acid, animal fur, animal excrement, proteases, formaldehyde, etc.; cough formation and attacks are also associated with recurrent respiratory infections, such as mycoplasma, chlamydia, bacteria, viruses, parasites, roundworms, etc.; cough attacks may be related to allergies, and among coughs triggered by allergies, coughs due to dietary reasons are very common. In particular, infants and children may have food allergies, such as to fish, shrimp, eggs, milk, etc.; coughing may be related to sudden changes in temperature and humidity in the weather; coughing is related to mental factors; patients who experience emotional excitement, anger, nervousness, and resentment can trigger coughing; coughing is related to exercise; patients with coughing may also experience coughing after strenuous exercise, which is also accompanied by chest tightness, dyspnea and wheezing; cough may also be associated with some medications, such as captopril. Depending on the cause and type of cough, different cough medicines can be used, both Western and Chinese medicines, as well as food. For example, codeine, compound licorice tablets, etc. Pay attention to a light diet and eat less spicy and stimulating foods, such as pears that can be boiled in water. In conclusion, cough is a common clinical symptom, mainly caused by infections, foreign bodies, allergens, etc. The temperature and humidity of the weather, the patient’s mental factors, exercise factors, and some medications may also trigger a cough, and the treatment is different for different coughs.