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Chronic rhinosinusitis (CRS) is a common otorhinolaryngologic disease, with an annual prevalence of 5-12%. It is characterized by nasal obstruction, purulent rhinorrhea, facial pain, and olfactory dysfunction. In children, CRS symptoms include coughing instead of loss of smell. Rhinosinusitis can be classified based on the duration of symptoms, it is defined as acute rhinosinusitis (ARS) when symptoms last for less than 12 weeks, and CRS when the symptoms last for more than 12 weeks. Nasal endoscopy, simple radiography, and computed tomography (CT) are used to diagnose sinusitis. As follow the guideline, CRS can be diagnosed when there is an inflammation (polyp, discharge, or edema) of the nasal cavity by nasal endoscopy, or there is an abnormality in the sinuses by CT scan. The first-line treatment for CRS is medical therapy, and endoscopic sinus surgery (ESS) is considered for CRS patients who fail medical therapy. Although the European (European Position Paper on Rhinosinusitis and Nasal Polyps 2020) and the United States (International Consensus Statement on Allergy and Rhinology: Rhinosinusitis) guidelines are typically used in the diagnosis and treatment of CRS, the actual diagnosis and

A Survey on the Management of Chronic Rhinosinusitis in the Korean Rhinologic Society