Sinus infections, also known as sinusitis are the most general infections in the world at present time. The sinusitis is the majority of ignition of the sines and the nasal passages. Sinus infection causes the headache, the forehead and the cheek, tenderness, ear ache and infection, fever, weakness, and cough. Sinuses produces mucus that clean and humidifies the membranes of the nose and the throat. Each sine has an opening in the nose whichholds account of the free exchange of mucus and the air. Sinus infection symptoms appears when these openings get plugged. The majority of the infections of sine are caused by viruses, asthma, allergens, nasal polyps, or all that cause swelling in the nose. In the rare occasion, the acute infection of sinus can result in the infection of the brain and other serious problems.

The signs and the symptoms of the infections of sinus depend on which sinuses are affected and if the infection of sinus is acute or chronic. Some extra indications, those the doctor examined for in order to determine sinusitis are swollen areas around the eyes, nasal passages that have become reddened, facial areas over the sinuses that are tender to percussion and drainage from the nose that is similar to pus. Sinus infections are categorized in two different manners, length of time and whether they are infectious or not. There can be pain anywhere close to these sinuses. The four important pairs of sinuses are the: Frontal sinuses, Maxillary sinuses, Ethmoid sinuses and Sphenoid sinuses. With frontal sinuses there possibly is the pain above the eyes in the brow region, with ethmoid sinuses, after bridge of the nose and between eye, with maxillary sinuses, in each cheekbone and with sphenoid sinuses, behind the ethmoids in the higher area of the nose and behind the eyes. This pain is the more common symptom for sinusitis.