Cold, cough, yellow phlegm, sore throat, if the symptoms are mild, usually without medication, pay attention to drink more water, more rest and other general treatment can be. If the symptoms are more serious, symptomatic treatment can be used to relieve cough and phlegm, sore throat, antibiotics and other medications. Colds are often caused by viral infections and can include nasal congestion, runny nose, sore throat, cough and phlegm. If the sore throat is obvious, you can gargle with compound boric acid solution to relieve the symptoms. In case of severe cough, dextromethorphan is usually used to suppress cough, and in case of phlegm, Ambroxol can be used to resolve phlegm, which can usually control the symptoms. The sputum from viral colds is usually white foamy or mucus sputum. If yellow sputum is present, it usually suggests that the viral cold is secondary to a bacterial infection, and antibiotics such as amoxicillin and erythromycin should be used to control the infection. Sore throat, cough and yellow sputum can also be caused by other diseases. If the symptoms do not improve or worsen, it is recommended to consult a doctor, complete the relevant examinations under the guidance of the doctor to determine the cause of the disease, and use medication according to the doctor’s instructions.