Afrin is used as a nasal drop or spray to treat nasal congestion caused by colds, allergies, and sinusitis. It works by reducing swelling and congestion in the lining of the nose, making breathing easier and relieving the feeling of stuffiness. Its effect begins within minutes of use and lasts for several hours.
Afrin is also used before certain medical procedures that require nasal cleansing. It should be used for short periods only, as prolonged use may cause increased congestion or damage to the nasal lining. You must follow your doctor's instructions or the package insert carefully and not use it for longer than the recommended period.