This tool supports structured infectious-disease decision making but does not replace clinician judgement or local guideline pathways.
This OpiCalc infectious-disease entry reflects commonly used guideline criteria and bedside risk features used in contemporary clinical practice.
Rhinosinusitis Severity (EPOS): Symptom-weighted EPOS-style severity and bacterial red flags for acute rhinosinusitis.
Severe facial pain or pressure
+1 Points
Purulent discharge predominates
Symptoms >10 days without improvement
+2 Points
Double-worsening after initial viral illness
Fever ≥38°C
Orbital or neurologic complication red flags
+3 Points
Assessment Tier
Score 0
Supportive care is usually appropriate.