Impetigo

Background

• Superficial infection caused by staph or strep
• May be superinfection or primary infection
• Fever and systemic signs are uncommon

Diagnosis

• Nonbullous
  • Erythematous macules/papules develop into vesicles which become pustular and rupture
    • As rupture release yellow fluid which dries to form stratified golden crust
• Bullous
  • Bullae form as result of staph toxin
  • Some cases caused by MRSA

Treatment

• Mupirocin ointment 2% TID x 7-14d
• Consider oral therapy for large areas or if topical tx is impractical
  • Cephalexin 40mg/kg/d divided in 3 doses x7-10d OR clinda 24mg/kg/d in 3 doses x7-10d

--> cover MRSA if RF