Sinus Infection
Sinus Infection OverviewSinus infection, or sinusitis, is an inflammation of the sinuses and nasal passages. A sinus infection can cause a headache or pressure in the eyes, nose, cheek area, or on one side of the head. A person with a sinus infection may also have a cough, a fever, bad breath, and nasal congestion with thick nasal secretions. Sinusitis is categorized as acute (sudden onset) or chronic (long term, the most common type). Anatomy of the sinuses (also called paranasal sinuses): The human skull contains four major pairs of hollow air-filled-cavities called sinuses. These are connected to the space between the nostrils and the nasal passage. Sinuses help insulate the skull, reduce its weight, and allow the voice to resonate within it. The four major pairs of sinuses are the:
Picture of the anatomy of the sinuses
The sinuses contain defenses against viruses and bacteria (germs). The sinuses are covered with a mucous layer and cells that contain tiny hairs on their surfaces (cilia). These help trap and propel bacteria and pollutants outward. Acute sinusitis usually lasts less than eight weeks or occurs no more than three times per year with each episode lasting no longer than 10 days. Medications are usually effective against acute sinusitis. Successful treatment counteracts damage done to the mucous lining of the sinuses and surrounding bone of the skull. Chronic or recurring sinusitis lasts longer than eight weeks or occurs more than four times per year with symptoms usually lasting more than 20 days. Next: Sinus Infection Causes » Viewer Comments & ReviewsSinus Infection - Effective TreatmentsThe eMedicineHealth physician editors ask:
What kinds of treatments have been effective for your sinus infection? |
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Sinus Infection
Fever in Adults Overview
A fever (also termed pyrexia) is a higher-than-normal body temperature. It is a symptom caused by a variety of illnesses.
Every one of us has experienced the wave of chills and exhaustion that a fever causes. Fever usually occurs in response to an infection or inflammation. However, many other causes are possible, including drugs, poisons, cancer, heat exposure, injuries or abnormalities to the brain, or disease of the endocrine (hormonal) system.
A fever rarely comes without other symptoms. It is often accompanied by specific complaints, which may help to identify the illness causing the fever. This can help the doctor determine which treatment is necessary.
- Normal body temperature can vary depending on the individual, the time of day, and even the weather. For most people, a temperature of 98.6 F (37 C) is baseline.
- Temperature is usually controlled by the part of the brain called the hypothala...
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Sinusitis, Acute »
Sinusitis is characterized by inflammation of the lining of the paranasal sinuses.
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