The Power of VICKS brought to you by the world’s #1 selling cough and cold brand! Sinex Severe Original Ultra Fine Mist Nasal Spray starts working in seconds to relieve the sinus and nasal congestion that often accompanies colds or allergies - so you can breathe freely fast. The active ingredient, oxymetazoline HCl, is an effective nasal decongestant and works for 12 hours for long-lasting relief of nasal stuffiness and sinus pressure. For adults and children 6 years and older (with adult supervision): 2 or 3 sprays in each nostril, not more often than every 10-12 hours. Do not exceed 2 doses in 24 hours.