How is yellow water flowing suddenly in nose to return a responsibility

The sudden yellow water in the nose is considered to be caused by bacterial infection in the nasopharynx, or may be caused by the rupture of cysts in the sinuses. It is recommended that the patient go to the hospital for CT and other related examinations to clarify the cause and carry out diagnosis and treatment. If bacterial infection, antiviral drugs can be used for treatment; if cysts are caused, surgery is required for radical treatment.