Coughing and spitting white sputum of lung cancer can be treated with medicines to dissolve phlegm and stop cough, anti-infection medicines, and also choose anti-tumor treatments such as surgery, chemotherapy, radiotherapy, immunotherapy and so on. 1. Drugs to dissolve phlegm and stop cough: coughing and spitting white sputum of lung cancer patients may be caused by bronchitis, so it is recommended to use drugs such as Pentoxyverine and Ambroxol Hydrochloride to alleviate the symptoms of coughing and spitting white sputum. 2. Anti-infection treatment: For those who are clearly infected with pathogens, anti-infection drug treatment is feasible. Bacterial pneumonia can be treated with antibiotics, such as influenza, anti-influenza drugs can be used, such as oseltamivir sulfate, abidol hydrochloride and so on, cytomegalovirus infection, EBV infection can be used ganciclovir and so on. 3. Surgery: Surgery is the main treatment method for lung cancer, which generally has good therapeutic effect in the early and middle stages of the disease. Commonly, there are local resection, extended resection and so on. 4. Chemotherapy: Chemotherapy refers to killing cancer cells by injecting or taking chemicals orally to achieve the effect of delaying the disease. Commonly used drugs include etoposide, carboplatin and so on. 5. Radiotherapy: radiotherapy is usually used for patients with locally advanced stage or inoperable. It can be combined with chemotherapy to improve the therapeutic effect. 6. Immunotherapy: clinically, it includes monoclonal antibodies of PD-1, such as pembrolizumab, nabulizumab, sindilizumab, karelizumab, etc. There are also monoclonal antibodies of PD-L1. There are also monoclonal antibodies of PD-L1, including the drugs of Duvarizumab and Atelizumab. It is recommended that patients receive standardized treatment under the guidance of a doctor, and do not use medication on their own to avoid delays.