Front side of the head of the sinuses and the gaps between the bones. These gaps are filled with air. Channels are connected to the nasal cavity and nasal sinuses a very thin part of the system. Surfaces are covered with the same tissue covering the inner surface of the nose and the nose just like a normal secretion (mucus) secrete. Inspired air to keep dust and bacteria in the lungs, this mucus task is to prevent access. This mucus is swallowed and then filtered and the right pharyngeal reaches the stomach. The dust and bacteria are inactivated by stomach acid.
Inflammation of the sinuses is called sinusitis. Excessive sinus mucus secreted during sinusitis. In this case, providing the opening of the channels are clogged sinuses, the nose, the interior pressure increases. The face, the cheeks, forehead, or pain around the eye occurs. Headache caused by sinusitis and many other type of headache can be mixed. Among these are migraine and tension-type headache. Migraine and tension-type headache in the forehead and eye pain occurs in the vicinity. However, a careful questioning, examination and laboratory tests can easily be reached with the distinction.