Flonase Vs Nasacort Nasal Spray: 8 Significant Differences Last Updated: October 7, 2021 by Dr. Amirul Mukminin - 6 minutes read Flonase and Nasacort sprays are two products to relieve allergic and non-allergic nasal symptoms. here are The Flonase Vs Nasacort Nasal Spray Significant Differences