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Most people turn towards over-the counter decongestants when they have a stuffy nose or congestion. Unfortunately, if you have high blood pressure you should avoid these products. That is because decongestants work to relieve congestion by shrinking blood vessels in the nasal membranes of the nose and air passages. These changes may affect blood vessels in locations other than the nose resulting in increased blood pressure.
Decongestant examples are pseudoephedrine, phenylephrine, and oxymetazoline. Decongestants in oral and nasal form can affect your blood pressure so it is recommended to try alternative options. Saline nasal spray is a great option to flush your sinuses. Drinking plenty of fluids, especially water, and getting rest are also important steps to helping your congestion.
If you still experience bothersome nasal congestion, talk to your pharmacist or doctor for advice.