Coughing up sputum with white foamy sputum may be caused by chronic obstructive pulmonary disease, acute bronchitis, cardiac insufficiency, etc. Intervention needs to be based on the cause of the disease, and treatment should be in accordance with the doctor’s prescription. 1. Chronic Obstructive Pulmonary Disease (COPD): If you suffer from COPD and other chronic respiratory diseases, you will experience chronic cough and sputum symptoms, with white foamy sputum, which can be symptomatically treated with sputum-cleansing drugs such as aminoglutethimide and acetylcysteine. 2. Acute bronchitis: If you suffer from bronchitis, white foamy sputum will also appear, mostly caused by viral infections, the treatment can use carboxymethyl stannum and other phlegm drugs for symptomatic treatment, if necessary, can be given to ribavirin and other antiviral therapy. 3. Cardiac insufficiency: coughing up white foamy sputum is mostly caused by stagnant blood in the pulmonary circulation, which can be treated by removing the causative factors, such as active anti-infective treatment, reducing the cardiac load such as diuretics like furosemide, and enhancing the contractility of the myocardium, such as digoxin, etc. The treatment can be used to improve cardiac function. When the cardiac function is improved, the cough will be relieved accordingly. Cough sputum, white foamy sputum can also be caused by other diseases, if cough sputum, white foamy sputum, it is recommended to consult a doctor to clarify the cause of the disease, follow the doctor’s instructions for standardized treatment, do not arbitrarily use drugs.