Definition
A decongestant is a medicine that helps relieve stuffiness in your nose and sinuses. It works by shrinking the swollen blood vessels in your nasal passages, making it easier to breathe. Think of it as opening up a clogged pipe. Decongestants come in different forms, like pills, nasal sprays, and liquids. While they can be helpful for temporary relief from colds or allergies, they're not a cure. It’s best to use them as directed and not for too long, as overuse can sometimes worsen congestion.