crs symptoms
Diagnosis of CRS . The definition of CRS encompasses symptoms, duration of symptoms and objective findings on examination or imaging. CRS is defined as inflammation of the nose and paranasal sinuses characterized by two or more symptoms, one of which should be either nasal blockage/congestion/obstruction or nasal discharge (rhinorrhea or postnasal drip). Other symptoms include facial pain or pressure, as well as decreased or complete loss of smell.