Effect of Nigella sativa Nasal Spray on the Treatment of Chronic Rhinosinusitis Without a Nasal Polyp

Chronic rhinosinusitis (CRS) is a common inflammatory disease of nasal and paranasal sinuses, with many treatment methods available for the management of this disease. Recently, herbal medicines have shown a significant impact on inflammatory diseases such as CRS, and one of these herbal medicines is Nigella sativa. Therefore, the current study aimed to evaluate the effectiveness of N. sativa in patients with CRS without nasal polyp (CRSsNP)