The causes of yellow and sticky nasal discharge in children mainly include the following: firstly, the symptoms caused by children suffering from wind-heat cold. After children feel the wind-heat evil, it will attack the nasal orifices, causing nasal congestion, yellow nasal discharge, and even cough and fever, etc. Children can be given timely treatment to clear the wind and heat, such as the application of silver forsythia antitoxin pellets. Secondly, the symptoms caused by children suffering from sinusitis. After children suffer from sinusitis, they will have yellow and sticky nasal discharge, headache and poor mental state, which can be diagnosed by brain CT in time.