Children’s fever, yellow nasal discharge, mainly due to rain, cold, physical weakness, resistance to decline and other triggering factors, resulting in the body by the invasion of purulent bacteria, the body’s inflammatory response, the mucous membrane of the respiratory tract, nasal congestion and edema, as well as a large number of yellow purulent secretions of the exudate, body temperature fluctuations, or even a gradual increase in the tendency of the body. At this time, you can choose antipathogen, antibacterial treatment, such as the use of amoxicillin, cefaclor, azithromycin and so on. You can test the blood routine, take yellow nasal mucus for bacterial culture if necessary, and also do the sensitivity test of antibiotics to adjust the treatment program at any time.