With cold and flu season comes an increased risk of sinus infections, which can trigger a runny nose, sinus pressure, congestion and postnasal drip, among other bothersome symptoms. Fortunately, you ...

A sinus infection, also known as sinusitis, happens when the spaces inside your nose and head (called sinuses) become swollen and filled with mucus. Normally, these are empty and help air flow through ...

The sinus of your heart has nothing to do with your nose as you might guess; it’s a structure in the right atrium where blood ...