| Acute viral rhinosinusitis |
| Acute viral rhinosinusitis should be diagnosed in patients with typical symptoms of rhinosinusitis for less than 10 days and in whom symptoms are not worsening (Strong recommendation) |
| Do not obtain radiographic imaging for acute rhinosinusitis unless a complication or alternative diagnosis is suspected (Recommendation) |
| Symptomatic relief may be prescribed (Option) |
| Acute bacterial rhinosinusitis |
| Management should include pain assessment (Strong recommendation) |
| Symptomatic relief may be prescribed (Option) |
| Observation without antibiotic treatment is an option for some patients with mild, uncomplicated illness (Option) |
| If antibiotic treatment is initiated, amoxicillin should be the first-line therapy (Recommendation) |
| If the patient does not improve with initial management within seven days of diagnosis, reassess the diagnosis and management options; initiate or change antibiotic therapy (Recommendation) |
| Chronic and recurrent acute rhinosinusitis |
| Chronic and recurrent acute rhinosinusitis should be distinguished from other illnesses (Recommendation) |
| Patients should be assessed for factors that modify management such as allergic rhinitis, cystic fibrosis, immunocompromised state, ciliary dyskinesia, anatomic variations (Recommendation) |
| Diagnosis should be corroborated and/or underlying causes should be identified (Recommendation) |
| Nasal endoscopy may be performed during evaluation or diagnosis (Option) |
| Computed tomography of the paranasal sinuses should be performed during evaluation or diagnosis (Recommendation) |
| Allergy or immune testing may be performed during evaluation (Option) |
| Patients should be educated about preventive measures (Recommendation) |