Classification

  1. EM minor
    • Skin lesions: typical and atypical papular 
    • Mucosal manifestations: mild/none
    • Systemic manifestations: none
    • Causes: herpes simplex virus, other infections
  2. EM major
    • Skin lesions: Typical, atypical popular targets, and bullous lesions
    • Mucosal manifestations: severe
    • Systemic manifestations: fever, myalgia
    • Causes: herpes simplex virus, Mycoplasma pneumoniae, other infections