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What causes sinusitis?

Sinusitis is inflammation of the sinuses. Sinusitis can be acute, chronic or recurrent. It can be caused by many different things, most commonly viral or bacterial infections, allergies/allergic rhinitis, a deviated septum or nasal polyps. 

Sinusitis is frequently caused by a common cold. Other causes include a bacterial or fungal infection. For some people, allergies lead to sinusitis. If your sinusitis is caused by a bacterial infection, your doctor may prescribe antibiotics to treat the infection.

Continue Learning about Sinusitis

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.