*Mechanism vs.
. single-ingredient antihistamines which do not treat nasal congestion.) Provides non drowsy, 24 hour relief in full prescription strength From the makers of Flonase Allergy Relief, Flonase® Sensimist™ features patented next generation MistPro Technology that delivers a scent free and virtually drip free mist The only over the counter nasal spray with the active ingredient fluticasone furoate Once-daily Flonase® Sensimist™ Allergy Relief nasal spray works directly at the source to help provide 24-hour relief from sneezing, itchy nose, runny nose and itchy, watery eyes,†† plus nasal congestion, unlike most allergy pills.† It helps block 6 key allergic substances, including histamine, prostaglandins, cytokines, tryptases, chemokines and leukotrienes.