A Answers (1)
Stacy Wiegman, PharmD, Pharmacy, answeredA decongestant is a medication that helps to relieve symptoms of the cold and flu, particularly congestion. Decongestants help to clear congestion by tightening blood vessels in the nose. This quells swelling so that more air is able to pass through, allowing you to breathe more easily. Decongestants are available over the counter in most states in spray, drops, liquids, or tablets.