Paranasal Sinuses

What are sinuses and sinus pressure which cause pain?

sinus, sinuses

By Dr. Rob Ivker, author Sinus Survival A SINUS OR SINUSES ARE…hollow air cavities in the skull connecting the nasal passages. They are connected via a narrow passageway called the ostium. The sinuses purpose is to humidify the air to the lungs, as well as create mucus secretion to eliminate unwanted particles from the body. They are a vital part of the respiratory process to