Key Difference – Allergic vs Nonallergic Rhinitis Rhinitis is the inflammation of the nasal mucosa. It is an upper respiratory tract disorder. Excessive mucus production, congestion, sneezing paroxysm, watery eyes, nasal and vocal pruritus are the clinical symptoms of rhinitis. In allergic rhinitis, the symptoms are triggered by an allergen. In contrast, nonallergic rhinitis […]