Treatment of Chronic Rhinosinusitis with Severe Sinonasal Symptoms or Red-Flag Signs

Not all chronic rhinosinusitis presentations follow standard management. Severe symptoms or the presence of specific red-flag signs indicate a clinical situation that requires a distinct, urgent approach.

Red-Flag Signs & Symptoms — This Scenario

This protocol applies when chronic rhinosinusitis presents with any of the following:

Severe sinonasal symptoms
Proptosis (exophthalmos)
Paresthesia
Unilateral, persistent, salty, or metallic-tasting rhinorrhea
Recurrent or persistent epistaxis
Diplopia
Severe pain
Fever
Unilateral sinonasal symptoms

Red-flag signs or symptoms should elicit urgent evaluation to rule out more serious pathology. Unilateral symptoms warrant expedited assessment, as chronic rhinosinusitis is typically bilateral in nature.

Management Approach

When red-flag signs or severe symptoms are present, the management pathway diverges significantly from standard chronic rhinosinusitis care.

Urgent specialist referral and urgent imaging of the paranasal sinuses are involved — the complete structured pathway is in the full protocol.

Full referral criteria, imaging specifications, and next steps are detailed in the structured regimen below.

Instant Access to Structured Evidence-Based Regimens

References

DOI: 10.1503/cmaj.241101

Red-flag signs or symptoms should elicit an urgent referral to an otolaryngologist to rule out more serious pathology, as should failure to respond to standard medical therapy.

Unilateral symptoms should prompt an expedited referral to rule out other pathologies as chronic rhinosinusitis is typically bilateral in nature.

Urgent referral to otolaryngologist and urgent CT of the paranasal sinuses.

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