Sinusitis is the inflammation of the sinuses that can be caused by a fungus, a bacteria or a virus, or by an allergy. In normal situations, the air passes through the sinuses without a problem; However, people suffering from sinusitis have blocked spaces and suffer discomfort and difficulties when it comes to breathing.
Breathing through the nose can be difficult. The area around your eyes and face may feel swollen, and you may experience pain in your face or during palpation. The paranasal sinuses are spaces full of air in the skull. They are located behind the forehead, the bones of the nose, the cheeks and the eyes. Healthy paranasal sinuses do not contain bacteria or other microorganisms. Usually, the mucus can come out and air can circulate through them.