Cellulitis Guide
What it is
Cellulitis is a bacterial skin and soft tissue infection, typically involving erythema, warmth, swelling, and tenderness.
Common causes
- Beta-hemolytic streptococci
- Staphylococcus aureus (including MRSA in selected risk profiles)
Treatment approach
- Mild/moderate non-purulent infection: oral beta-lactam pathways in appropriate patients.
- Purulent or MRSA-risk infection: MRSA-active oral options with source control when needed.
Non-pharmacologic care
- Elevation of affected limb
- Wound/skin care and edema control
- Foot care education in diabetes
Monitoring and follow-up
- Mark borders to track response over 24-48 hours
- Escalate for fever, rapid progression, systemic symptoms, or treatment failure