Variables of Interest Demographic - age, gender, and race. Index condition - Duration of CRS symptoms, response to previous treatments Co-morbid conditions - Presence and severity of general comorbid conditions will be assessed with ACE-27. Presence of rhinosinusitis-specific comorbidities will include: inhalant allergies, asthma, and aspirin sensitivity Previous sinus and/or nasal surgery - Previous sinus and/or nasal surgery, including functional endoscopic sinus surgery, turbinate reduction, and septoplasty will be captured and duration since surgery to time of enrollment.