Sinusitis.

The vast majority of sinus infections, also called sinusitis, are viral and will go away all on their own, especially if you’ve had symptoms for less than two...

Each year, almost 12% of all Americans will be diagnosed with a sinus infection. And more than 50 million people in the U.S. every year experience allergy symptoms....

If you’ve ever had a sinus infection, you know how uncomfortable—and persistent—they can be. You can’t breathe normally due to nasal congestion, postnasal drip interferes with sleep, and...