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Nasonex nasal spray contains the active ingredient mometasone furoate, which is a corticosteroid. Corticosteroids are a type of hormone that works by reducing inflammation. Mometasone furoate in Nasonex nasal spray helps to relieve allergy symptoms by blocking the release of certain substances in the body that cause inflammation. When you spray Nasonex nasal spray into your nose, the medication is absorbed through the membranes in your nose where it travels to the site of inflammation. It then works to reduce swelling and irritation. This can help relieve symptoms such as sneezing, congestion, and itchy eyes. Nasonex nasal spray may also help to improve your breathing if you have allergies that affect your lungs. It starts to work within minutes and can last up to 12 hours.
What Does Nasonex Treat?