rhinitis
"Awesome! For years I suffered sinus headaches, which are much like Migraines. Flonase has alleviated that tremendously. I don't take this all the time just when I sense allergy season, or plan to be somewhere, where there is a atmospheric change like the mountains or in an airplane. It keeps my sinuses from swelling, causing the headache, it's not an instant fix, it takes about 11 hours to be effective on me."