Afrin® Allergy Sinus Nasal Spray. Oxymetazoline HCl nasal solution-nasal decongestant. Fast, powerful congestion relief from allergies. 12 Hour Relief®. Reduces swelling of nasal passages. #1 doctor & pharmacist recommended brand. 1/2 fl oz (15 ml). Afrin® allergy sinus reduces swelling in the nasal passages caused by allergies. It starts working in seconds providing up to 12 hours of nasal congestion relief without drowsiness. Up to 12 hour relief from nasal congestion. Relief can last all-day or all-night. Bayer, Afrin and the Afrin spray design are registered trademarks of Bayer. 100% Recycled Paperboard®. Uses: Temporarily relieves nasal congestion due to: Common cold. Hay fever. Upper respiratory allergies. Temporarily relieves sinus congestion and pressure. Shrinks swollen nasal membranes so you can breathe more freely. Questions or comments 1-800-317-2165. ©2016 Bayer.