Section one. Acute and chronic rhinosinusitis.

Rhinosinusitis is one of the most common conditions seen by family physicians. Most cases are viral in nature and resolve spontaneously. When symptoms persist for 10 days or more or are accompanied by severe pain and fever, bacterial sinusitis may be present. Current guidelines recommend that acute bacterial sinusitis be treated with amoxicillin-clavulanate. Chronic bacterial sinusitis typically involves a change in the sinus ostia and microbiology. This rarely resolves with antibiotic treatment alone and often warrants surgical intervention. Fungal sinusitis is a rare condition seen more often in immunosuppressed individuals and manifests in severe symptoms along with possible neurologic findings.