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Sinusitis (acute)

A Canadian clinical summary of sinusitis (acute), with source-attributed priorities and explicit jurisdiction boundaries.

JurisdictionCanada
Source check2026-08-20
Clinical reviewiatroX editorial team 路 Clinical editorial review 路 reviewed 2026-08-20 路 due 2027-08-20
AudienceHealthcare professionals practising in Canada
This is an iatroX educational summary of named Canada sources, not an official guideline. It does not replace the complete source documents, local policy, specialist advice or clinical judgement. The evidence source is pan-Canadian, but formularies, funded access, referral routes, public-health directions and service availability remain provincial or territorial.

Source and scope

This summary is bounded to the recommendations, population and decisions covered by Using Antibiotics Wisely in primary care. Apply it with the current provincial or territorial pathway where implementation differs.
sources for this section:CWC antibiotics

Source-attributed clinical priorities

  • Diagnose acute bacterial rhinosinusitis from a persistent, severe or worsening pattern rather than purulent discharge alone.
  • Use supportive care for likely viral disease and reserve antibiotics for the source-defined bacterial phenotype.
  • Escalate orbital signs, severe frontal headache, neurologic features, facial swelling or immunocompromise.
  • Routine sinus imaging does not distinguish uncomplicated viral from bacterial rhinosinusitis.
sources for this section:CWC antibiotics

Practical assessment and management workflow

1
Define symptom duration and whether illness is persistent, severe at onset or worsening after initial improvement.
2
Examine eyes, facial swelling, dentition and neurologic status for complications or an alternative source.
3
Use saline, analgesia and intranasal treatment where appropriate and reserve antibiotics for a bacterial pattern.
4
Review recurrent or chronic disease for allergy, anatomy, dental infection and specialist need.
sources for this section:CWC antibiotics

Safety, red flags and urgent escalation

  • Orbital swelling, impaired eye movement, reduced vision or proptosis needs emergency assessment.
  • Severe frontal headache, meningism, focal deficit or altered consciousness suggests intracranial spread.
  • Avoid repeated broad-spectrum antibiotics without reassessing the diagnosis.
sources for this section:CWC antibiotics

Confirm the local pathway before acting

The evidence source is pan-Canadian, but formularies, funded access, referral routes, public-health directions and service availability remain provincial or territorial.
sources for this section:CWC antibiotics

Source and implementation boundary

Read this educational summary with the linked source, current Canadian product information where medicines are involved, and the applicable provincial or territorial pathway. Local formularies, reporting duties, referral routes and service availability can differ.
sources for this section:CWC antibiotics

Source documents

Use the linked source documents for complete recommendations, evidence grading, exclusions and implementation detail.

  1. Choosing Wisely CanadaUsing Antibiotics Wisely in primary careaccessed 2026-08-20
    view source
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