Children with yellow pus nasal discharge may be caused by upper respiratory tract infection, acute rhinitis, sinusitis and other factors, you can use some nasal drops, or oral medication, for treatment. 1. Upper respiratory tract infection: local inflammatory stimuli may cause nasal mucosa congestion or edema, nasal secretions increased, thus causing children with nasal congestion, runny nose and other symptoms, this situation can be relieved using drugs such as cefaclor. 2. Acute rhinitis: may lead to diffuse congestion and swelling of the nasal mucosa, the beginning of the flow of a large number of clear snot, later yellow pus, this situation can be used budesonide nasal spray, cefixime and other drugs to alleviate the symptoms. 3. Sinusitis: inflammatory stimulation of the sinus cavity, may produce a large number of mucopurulent secretions, this situation can be used to control the condition of cefixime and other drugs to alleviate the symptoms. If a child has the symptom of yellow pus nasal discharge, he should consult a doctor in time to find out the cause of the disease, actively treat it, and follow the doctor’s instructions to use the medication, so as not to delay the condition.