A cough with yellow sputum followed by white sputum may be an indication of a normal turnaround in the course of the disease, or it may be associated with other pathogenic infections. It can be relieved by general treatment and medication. 1. General treatment: During the period of illness, eat a light diet, drink plenty of water, and avoid spicy and greasy food. Regular work and rest, ensure enough sleep. 2. Medication (1) Coughing up yellow sputum is usually a bacterial infection, if yellow sputum turns into white sputum, it may be the normal development of the disease process, there is no need for special treatment at this time, regular use of existing drugs such as amoxicillin, levofloxacin, etc. can be. (2) If white sputum is accompanied by other symptoms, such as chills, fatigue, muscle pain, etc., then consider the combination of viral infections. Use heat-clearing and detoxifying drugs such as Lianhua Qingdian Granules, Cold and Fever Granules, etc. for treatment. The patient should go to the hospital in time, conduct relevant examinations such as blood routine, chest X-ray, etc., to clarify the cause of the disease. The above mentioned drugs should be taken under the guidance of professional doctors.