Sinusitis can cause facial pressure, sinus headache, and other symptoms. Treatment may depend on the cause. A sinus infection, also known as sinusitis or rhinosinusitis, occurs when your nasal ...

Since your sinuses are near your mouth, the pressure accompanying an infection can cause pain in your upper teeth. Pain in the teeth may also result from a toothache. A sinus infection, also known as ...

Congestion. Runny nose. Sore throat. These are cold symptoms we know all too well. But what happens when all the chicken soup and vitamin C in the world don’t seem to be doing the trick? It may be one ...