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Cellulitis and erysipelas (adults)

A Canadian clinical summary of cellulitis and erysipelas (adults), with source-attributed priorities and explicit jurisdiction boundaries.

JurisdictionCanada
Source check2026-08-20
Clinical reviewiatroX editorial team · Clinical editorial review · reviewed 2026-08-20 · 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. Alberta is used as an explicit Canadian implementation example, not as a national rule. Verify the equivalent pathway, formulary and escalation route in the patient’s province or territory.

Alberta source: bounded use

This Alberta provincial clinical knowledge topic covers adults presenting to the emergency department with cellulitis and related skin and soft-tissue infection. Paediatric pathways and treatment outside Alberta require separate verification.
sources for this section:AHS adult cellulitis

Source-attributed clinical priorities

  • Mark extent, assess systemic illness and look for abscess, wound, bite, edema, tinea pedis and a portal of entry.
  • Drain a drainable collection and use antimicrobial therapy matched to severity, exposures and local resistance.
  • Escalate disproportionate pain, rapid progression, bullae, crepitus, necrosis, shock or deep-structure involvement.
  • Mark the margin and document limb circumference or photographs when this will help assess progression.
sources for this section:AHS adult cellulitis

Practical assessment and management workflow

1
Assess systemic illness, pain severity, speed of spread, portal of entry and abscess or wound.
2
Look for venous disease, edema, tinea pedis and mimics such as dermatitis or thrombosis.
3
Choose oral versus intravenous therapy from severity, host factors and local microbiology.
4
Review early progression and later response, and address edema and skin-barrier prevention after recovery.
sources for this section:AHS adult cellulitis

Safety, red flags and urgent escalation

  • Pain out of proportion, bullae, crepitus or rapidly advancing toxicity suggests necrotizing infection.
  • Orbital or facial involvement, severe immunosuppression or sepsis needs urgent specialist care.
  • Drain a fluctuant abscess when indicated rather than relying on antibiotics alone.
sources for this section:AHS adult cellulitis

Confirm the local pathway before acting

Alberta is used as an explicit Canadian implementation example, not as a national rule. Verify the equivalent pathway, formulary and escalation route in the patient’s province or territory.
sources for this section:AHS adult cellulitis

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:AHS adult cellulitis

Source documents

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

  1. Alberta Health ServicesCellulitis, Adult – Emergency Department: Provincial Clinical Knowledge Topicaccessed 2026-08-20
    view source
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