Nasonex nasal spray is a corticosteroid medication used to treat and prevent allergic rhinitis. It contains the active ingredient mometasone furoate, which helps reduce inflammation in the nasal passages so you can breathe easier and relieve congestion, sneezing and other allergy symptoms. Nasonex Nasal Spray is easy to use and available without a prescription. Get Nasonex Nasal Spray today and start relieving your nasal allergies.