what is mometasone furoate nasal spray
Last reviewed on RxList 5/6/2015. Nasonex (mometasone furoate monohydrate) Nasal Spray is a steroid used to treat nasal symptoms such as congestion, sneezing, and runny nose caused by seasonal or year-round allergies.Nasonex is also used to treat nasal polyps in adults.ast reviewed on RxList 5/6/2015. Nasonex (mometasone furoate monohydrate) Nasal Spray is a steroid used to treat nasal symptoms such as congestion, sneezing, and runny nose caused by seasonal or year-round allergies.