How do decongestants work?
Decongestants work by narrowing blood vessels in the lining of the nose. This reduces how much blood flows through the area so that swollen tissue inside the nose shrinks and air can pass through more easily.
How do I safely take OTC decongestants?
Read the directions on the drug facts label to learn how much medicine to take and how often to take it. If you have any questions about how much medicine to take, call your family doctor or pharmacist.
When should I talk to my doctor?
Call your doctor if your congestion lasts more than 2 weeks, if you have a fever, or if you have severe pain in your face or sinuses. If you are regularly using an OTC decongestant nasal spray to keep your nose clear, talk with your doctor about other treatments that are safer to use.