Most coughs with white foamy sputum are caused by viral and bacterial infections such as bronchitis, tracheitis and pneumonia. For the treatment of cough with white foamy sputum, it is necessary to clarify the cause of the disease and then take symptomatic treatment with Chinese medicine and western antibiotics for the cause, and do not eat spicy and stimulating food. Coughing white foamy sputum is considered to be caused by bronchitis and bronchitis caused by bacterial and viral infections, and the above symptoms may also appear in diseases such as inflammation of the pharynx and old chronic bronchitis, etc. Coughing white foamy sputum may also be accompanied by fever, difficulty in breathing and wheezing when it appears in the above diseases. If you have a cough with white foamy sputum, it is recommended that you go to the hospital for a CT examination of the lungs, blood tests, and tuberculin tests to confirm the diagnosis. We can find out what causes the white foamy cough and then treat the symptoms. Patients can take anti-inflammatory drugs, such as cephalosporins and azithromycin, as well as cough medicines and antispasmodic and asthma medicines, such as compound licorice tablets, snake bile and Sichuan pepper cream, bromoxynil, and pudylan oral solution. Patients should pay attention to drinking more warm water, keeping warm, taking more rest, eating less spicy and stimulating food, and not eating too salty food. In conclusion, when white foamy phlegm of cough appears, first find the cause, diagnose early, treat early, and take different treatment plans such as anti-inflammatory, cough suppressing and phlegm dissolving according to different causes. Patients should pay attention to diet in daily life, eat more fresh vegetables and fruits, boil water with pears, don’t eat too greasy, and enhance physical fitness.