The 3CS are nasal blockage/obstruction/congestion, anterior/posterior nasal discharge, and facial pain/pressure. The diary is completed daily by study participants throughout the study. Each symptom is rated on a 4-point (0-3) scale where 0= none/absent symptoms, 1=mild symptoms, 2=moderate symptoms, and 3=severe symptoms. The composite score of 3CS is the sum of the three cardinal symptom scores. The 3CS total score ranges from 0-9, with higher scores indicating worse symptoms.

The 3CS are nasal blockage/obstruction/congestion, anterior/posterior nasal discharge, and facial pain/pressure. The diary is completed daily by study participants throughout the study. Each symptom/each question is rated on a 4-point (0-3) scale where 0= none/absent symptoms, 1=mild symptoms, 2=moderate symptoms, and 3=severe symptoms. The composite score of 3CS is the sum of the three cardinal symptom scores. The 3CS total score ranges from 0-9, with higher scores indicating worse symptoms.

Participants score their CS symptoms on a 4-point scale as follows: 0 = absent symptoms (no sign/symptom evident), 1 = mild symptoms (sign/symptom present but minimal awareness; easily tolerated), 2 = moderate symptoms (definite awareness of sign/symptom that is bothersome but tolerable), 3 = severe symptoms (sign/symptom that is hard to tolerate; causes interference with activities of daily living and/or sleeping). The scores are summed and averaged over the proceeding 7 days; higher scores indicate higher severity of symptoms of CS.