Eradication of white phlegm needs to be treated according to the patient’s condition for the cause of the disease, symptomatic treatment, can not be generalized, oral bromhexine and other expectorants, amoxicillin and other antibiotics, isoniazid and other anti-tuberculosis drugs. 1. Expectorants. Expectorants such as compound licorice and bromhexine can be taken orally to help cough up phlegm and reduce phlegm secretion. 2. Antibiotics. When white phlegm is caused by bacterial infection, antibiotics such as amoxicillin and cefuroxime can be taken orally. 3. Antiviral drugs. Patients with influenza can be treated with antiviral drugs such as oseltamivir as appropriate. 4. Treatment for the cause of the disease. (1) Bronchodilatation. Bronchodilators such as aminophylline and salmeterol can be applied for treatment. (2) Tuberculosis, which can be treated with anti-tuberculosis drugs such as isoniazid and rifampicin. In addition, when accompanied by severe cough, cough suppressants such as dextromethorphan can be taken orally; when accompanied by fever, antipyretic and analgesic drugs such as ibuprofen can be taken orally, and glucocorticosteroids such as budesonide can be inhaled in case of severe inflammation. Cough white sputum may also have other causes, such as lung tumors, acute left heart failure, patients are advised to consult a doctor in a timely manner to clarify the diagnosis, the use of medication should strictly follow the doctor’s instructions for the correct use of medication, and pay attention to regular daily routine, do not stay up all night, and drink more water.