USES: Triamcinolone is used to prevent and treat seasonal and year-round allergy symptoms (such as stuffy/runny nose, itchy eyes/nose/throat, sneezing). Triamcinolone belongs to a class of drugs known as corticosteroids. It works by reducing swelling (inflammation) in the nasal passages. Check the ingredients on the label even if you have used the product before. The manufacturer may have changed the ingredients. Also, products with similar names may contain different ingredients meant for different purposes. Taking the wrong product could harm you.