Sinusitis: An infection of one or more nasal sinuses. With swelling of nasal mucous membranes, the openings from sinuses to the nose may be blocked, causing pressure, pain, headache, fever and tenderness.
Sinusitis, a term used to describe infection or inflammation of the sinuses, affects as many as 37 million people every year in the United States, according to the American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS). Sometimes called "sinus attacks," sinusitis may be acute (lasting for four weeks or less); chronic (lasting for four to 12 weeks-or for years); or recurrent (attacks return several times within one year).
Many people use the terms "sinus infection" and "cold" interchangeably. According to the National Institute of Allergy and Infectious Diseases, most cases of sinusitis do follow the common cold, but a cold doesn't cause the symptoms of sinusitis. Rather, it often sets the stage for sinusitis to develop. Fungal infections, chronic inflammation of the nasal passages caused by allergies, asthma or other conditions, structural problems, and a weakened immune system can also cause sinusitis.
Your sinuses comprise four pairs of hollow spaces in your face that surround your nose. The frontal sinuses are over your eyes; the maxillary sinuses are inside your cheekbones; the ethmoids are between your eyes, behind the bridge of your nose; and the sphenoides are behind your eyes.
Each sinus opens into the nose and is joined with the nasal passages by a continuous mucus membrane lining. This allows mucus and air to travel freely. You feel pain in your sinuses when that free travel is blocked.
Each sinus produces its own pain when infected. For example, if your maxillary sinuses are infected, your jaw and your teeth might hurt and your cheeks might be tender. Your nose might hurt, be stuffy, or you could lose your sense of smell if your ethmoid sinuses are inflamed. Pain in your forehead and/or headache might indicate a problem with your frontal sinuses. Your sphenoid sinuses, which are the least frequently affected sinuses, can cause earaches, neck pain and a headache in the top of your head.
Most people with inflamed sinuses report having pain in several areas of the face, head or neck.
Sinusitis, a term used to describe infection or inflammation of the sinuses, affects as many as 37 million people every year in the United States, according to the American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS). Sometimes called "sinus attacks," sinusitis may be acute (lasting for four weeks or less); chronic (lasting for four to 12 weeks-or for years); or recurrent (attacks return several times within one year).
Many people use the terms "sinus infection" and "cold" interchangeably. According to the National Institute of Allergy and Infectious Diseases, most cases of sinusitis do follow the common cold, but a cold doesn't cause the symptoms of sinusitis. Rather, it often sets the stage for sinusitis to develop. Fungal infections, chronic inflammation of the nasal passages caused by allergies, asthma or other conditions, structural problems, and a weakened immune system can also cause sinusitis.
Your sinuses comprise four pairs of hollow spaces in your face that surround your nose. The frontal sinuses are over your eyes; the maxillary sinuses are inside your cheekbones; the ethmoids are between your eyes, behind the bridge of your nose; and the sphenoides are behind your eyes.
Each sinus opens into the nose and is joined with the nasal passages by a continuous mucus membrane lining. This allows mucus and air to travel freely. You feel pain in your sinuses when that free travel is blocked.
Each sinus produces its own pain when infected. For example, if your maxillary sinuses are infected, your jaw and your teeth might hurt and your cheeks might be tender. Your nose might hurt, be stuffy, or you could lose your sense of smell if your ethmoid sinuses are inflamed. Pain in your forehead and/or headache might indicate a problem with your frontal sinuses. Your sphenoid sinuses, which are the least frequently affected sinuses, can cause earaches, neck pain and a headache in the top of your head.
Most people with inflamed sinuses report having pain in several areas of the face, head or neck.
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