14/04/2023
Cellulitis is an infection of the deep dermis and subcutaneous tissue. It causes a localised area of red, painful, swollen skin that is usually well demarcated. The most common site of infection is the lower limb.
Most common cause: Streptococcus pyogenes
Second most common cause: Staphylococcus aureus
Severity graded using Eron Classification 1-4:
• Grade 2 cellulitis or higher is classified as severe and hospital admission should be considered
• Cellulitis of the face is also considered severe
First-line treatment of non-severe cellulitis (Grade I & not on the face) is with Flucloxacillin 0.5-1.0g qds for 7 days total.
medics
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