Treatment of Nasal Polyps Topical corticosteroid spray Sometimes surgical removal Corticosteroids (eg, mometasone [30 mcg / spray], beclomethasone [42 mcg / spray], flunisolide [25 mcg / spray] aerosols), given as 1 or 2 sprays 2 times a day in each nasal cavity, may shrink or eliminate polyps, as may a 1-week tapered course of oral corticosteroids.