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Sinusitis
- Topic Overview
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Health Tools
- Cause
- Symptoms
- What Happens
- What Increases Your Risk
- When To Call a Doctor
- Exams and Tests
- Treatment Overview
- Prevention
- Home Treatment
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- Related Information
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There are two types of sinusitis: acute (sudden onset) and chronic (long-term). Sinusitis often develops after a cold or viral infection. Most sinus infections improve on their own, but sometimes they develop into a bacterial infection—swelling, inflammation, and mucus production caused by the cold can lead to blockage in the nasal passages, which may encourage the growth of bacteria.
Acute sinusitis, whether viral or bacterial, may develop into chronic inflammation or infections that may last 8 weeks or longer. Chronic sinusitis can lead to permanent changes in the mucous membranes that line the sinuses. As a result of these changes, you may become prone to having more sinus infections that may become more difficult to treat.
Complications of sinusitis (such as an infection of the facial bones called osteomyelitis) are relatively rare. But when complications occur, they may be life-threatening and often require extensive medical or surgical treatment.
| By: | Healthwise Staff | Last Revised: August 3, 2010 |
| Medical Review: | Kathleen Romito, MD - Family Medicine Donald R. Mintz, MD - Otolaryngology | |
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