Nasonex 24HR Allergy Nasal Spray contains mometasone furoate 50 mcg per spray, a steroid glucocorticoid medicine known to relieve allergy symptoms. This non-drowsy, scent-free mist provides 24-hour relief of nasal congestion, runny nose, sneezing, and itchy nose due to hay fever or other upper respiratory allergies. Trusted for full prescription strength allergy + congestion relief, this allergy nasal spray offers targeted symptom control and convenient dosing to help you breathe easier every day.