What do Flonase products treat? Flonase products are used to treat symptoms caused by allergies. The main active ingredient in most Flonase products is fluticasone. Flonase products that contain ...
Both Nasacort and Flonase are over-the-counter corticosteroid medications used to treat allergy symptoms like sneezing, stuffy nose, and runny nose, but Flonase can also alleviate itchy, watery eyes.