Cellulitis outpatient triage
Practical framework for skin/soft tissue infection triage, severity grading, and escalation to urgent care pathways.
Last reviewed February 7, 2026
Red flags
- Rapid progression, severe pain out of proportion, or necrotizing infection concern.
- Hemodynamic instability, confusion, or sepsis features.
- Failure of initial treatment with worsening systemic illness.
Assessment priorities
- Confirm infection pattern, progression speed, and portal of entry.
- Assess fever, systemic symptoms, comorbid diabetes/vascular disease, and immune status.
- Distinguish cellulitis from mimics and identify abscess or deeper infection concern.
Initial management
- Define outpatient versus urgent pathway based on severity and host risk.
- Start evidence-aligned treatment and mark borders for progression monitoring.
- Counsel on wound care, hydration, and adherence to follow-up plan.
Follow-up and escalation
- Reassess within 24-48 hours for trajectory confirmation.
- Reassess for substantial or rapid spread, worsening pain or systemic illness; some early extension of redness may occur. Re-evaluate if improvement has not begun within 2-3 days.
- Coordinate referral/hospital pathway for complicated or recurrent disease.
References
- IDSA Skin and soft tissue infection guideline (2014) (opens in a new tab)
- CDC Clinical guidance for group A streptococcal cellulitis (2025) (opens in a new tab)
- NICE NG141 Cellulitis and erysipelas recommendations (opens in a new tab)
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