Difference between revisions of "Impetigo"

(Clinical Features)
(Clinical Features)
Line 18: Line 18:
**Some cases caused by [[MRSA]]
**Some cases caused by [[MRSA]]
*Uncommonly painful, but usually pruritic
*Uncommonly painful, but usually pruritic
*Regional lymphadenopathy is common
*Regional [[lymphadenopathy]] is common
==Differential Diagnosis==
==Differential Diagnosis==

Latest revision as of 22:49, 27 September 2019


  • Superficial epidermal infection characterized by amber crusts (nonbullous) or vesicles (bullous)
  • May be super-infection or primary infection
  • Fever and systemic signs are uncommon
  • Post-streptococcal glomerular nephritis is a possible complication, and incidence is not reduced by antibiotic therapy
  • Highly contagious and easily transmittable

Clinical Features

Impetigo honey-colored scab
Impetigo on the back of the neck.
Bullous impetigo after the bulla have broken.
  • 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
  • Uncommonly painful, but usually pruritic
  • Regional lymphadenopathy is common

Differential Diagnosis



  • Clinical diagnosis



Coverage for MSSA, MRSA, Group A Strep

Topical therapy

  • Mupirocin (Bactroban) 2% ointment q8hrs x 5 days
    • For nonbullous impetigo, topic antibiotics are as effective as oral antibiotics

Oral Therapy


  • Outpatient

See Also