10 Sinus Infection Symptoms

If you've been congested or had other symptoms for weeks, you may have a sinus infection.

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Your sense of smell or taste is "off"

Again, the same inflammation that interferes with your sinuses’ natural ability to drain can mess with your sense of smell and taste.

Air movement in the sinuses normally "helps volatile molecules to settle in and provide a signal to the brain to let you know what you’re tasting," Dr. Papa says. So a sinus infection can dull your sense of taste, even though you’ll still be able to tell if something is salty or sweet, according to Dr. Papa. But finer nuances of taste—like the flavor of a fine wine or subtle soufflé—might be lost on you until your sinuses become unplugged.

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