Table 2.

Total nasal symptom scores (TNSS) each symptom (sneezing, congestion, itching, and rhinorrhea) is graded from 0 to 3 by the participants during the screening and NAC visits

Score symptoms	Severity of symptoms reported by patient
0 = None 1 = Mild 2 = Moderate 3 = Severe	No symptoms evident Symptom present but easily tolerated Definite awareness of symptom; bothersome but tolerable Symptom hard to tolerate; interferes with daily activity