Flomist Nasal Spray operates as a potent nasal corticosteroid, designed to combat inflammation and irritation within the nasal passages. The active ingredient, fluticasone propionate, acts by reducing the release of inflammatory substances in the body. Specifically, it hinders the activity of certain cells responsible for triggering allergic responses, leading to decreased swelling and congestion. By alleviating nasal symptoms like sneezing, itching, and runny nose, Flomist provides effective relief for individuals grappling with conditions such as allergic rhinitis. Understanding the mechanism behind Flomist Nasal Spray sheds light on its efficacy in promoting clearer nasal airways and enhancing overall respiratory well-being.