This convenient spray bottle is great for on-the-go activities to provide you coverage for your nasal congestion relief. You'll receive targeted nasal congestion relief due to upper respiratory allergies or hay fever. This fast-acting formula provides up to 12-hour relief and is non-drowsy. Mucinex Sinus & Allergy Nasal Spray temporarily relieves nasal congestion due to a cold, hay fever or other upper respiratory allergies. It promotes nasal & sinus drainage, and temporarily relieves sinus congestion & pressure. Get yourself covered this allergy season with Mucinex.