"Although, your health condition may impact your everyday life, do not let it define who you are." NASONEX(r) (mometasone furoate) Nasal Spray is used to treat and prevent the symptoms (e.g., stuffy or runny nose, itching sneezing) of seasonal (short-term) and perennial (year-round) allergic rhinitis (hay fever). This medicine is also used to treat nasal polyps in adults. Mometasone belongs to the family of medicines known as corticosteroids (cortisone-like...