Children with yellow and thick nasal discharge usually do not heal themselves and need appropriate treatment to heal. The main pathogens are bacteria, which produce inflammatory reactions in the mucous membrane of the upper respiratory tract, leading to congestion and edema of the mucous membrane and increasing yellow purulent secretions, which usually cannot be cured by themselves. The first consideration is that there is an acute upper respiratory tract infection and that there is a greater likelihood of retrograde infection of the upper respiratory tract infection causing sinusitis. If it is acute sinusitis, in addition to yellow nasal discharge, there will also be headache symptoms, so you can go to the hospital to do a frontal and lateral sinus film or sinus CT examination. If it is determined to be acute sinusitis, active anti-inflammatory treatment is required. Cephalosporin antibiotics are available for patients without a history of drug allergy, and local physical therapy can also be performed to promote the absorption of inflammation. The child usually pay attention to a light diet, eat easily digestible food, drink appropriate water, if necessary, you can take oral Chinese medicine to clear heat and fire.