Flonase is a brand name for fluticasone nasal spray, which is used to relieve allergy symptoms such as sneezing, itching, and runny or stuffy nose. It is also used to treat nasal polyps. Flonase works by decreasing inflammation in the nose, making it easier to breathe. It belongs to a group of medications called nasal steroids. Flonase can be used to relieve seasonal and year-round allergic and non-allergic nasal symptoms, such as stuffy/runny nose, itching, and sneezing. It can also help relieve allergy eye symptoms such as itchy, watery eyes. Flonase should not be used to treat symptoms caused by the common cold. The correct dosage varies by product and age, and it is important to use Flonase as directed to get maximum benefit.