Acute bacterial sinusitis guide

Audience: Patients and providers
Status: Clinical guide · patient + provider
Last updated: 2026-03-09

1. What this disease is

Acute bacterial sinusitis guide is a common condition that benefits from early diagnosis, clear education, and a structured care plan.

2. Common causes and risk factors

• Most sinusitis is viral; bacterial disease is a minority subset.
• Bacterial concern increases with persistent, severe, or worsening “double-sickening” course.

3. Typical symptoms

• Facial pressure, purulent nasal drainage, congestion, reduced smell, fever in severe cases.

4. Diagnosis and evaluation

• Confirm diagnosis with guideline-based history, exam, and indicated testing.
• Screen for severity, complications, and high-risk comorbid conditions.
• Identify social or access barriers that could affect treatment success.

5. Treatment (non-pharmacologic)

• Hydration, saline irrigation, analgesics, and symptom-directed care.
• Avoid unnecessary antibiotics for likely viral illness.

6. Treatment (pharmacologic)

• When bacterial criteria are met: amoxicillin/clavulanate is common first-line option.
• Consider allergy history/local resistance and severity for regimen choice.
• Short, guideline-concordant duration preferred.

7. Monitoring and follow-up

• Expected symptom improvement within days; escalate if orbital/CNS warning signs.

8. Practical counseling points

• Give patients a clear “what to do today / when to call / when to seek urgent care” plan.
• Use teach-back to confirm understanding of treatment goals and medication instructions.
• Simplify regimens when possible to improve adherence and outcomes.

9. Red flags and escalation

• Escalate care urgently for severe or rapidly worsening symptoms.
• Reassess diagnosis if expected response does not occur within the anticipated timeline.

10. Guideline references

• IDSA acute bacterial rhinosinusitis guidance.
• AAO-HNS adult sinusitis guideline.
• CDC outpatient antibiotic stewardship guidance.

Note: Educational guide only; not a substitute for individualized medical care.