A. Macular or papular rash with fever

  1. Drug hypersensitivities
  2. Collagen diseases: SLE, dermatomyositis, "serum sickness"
  3. Infection: scarlet fever, erythema infectiosum (fifth disease), measles (rubeola), German measles (rubella), Enterovirus (echo & coxsackie virus) infections, Adenovirus infections, Typhoid fever, Typhus (murine), Secondary syphilis, Rocky Mountain spotted fever (early lesions), Erythema multiforme (infection or drug), erythema marginatum, acute viral hepatitis urticaria, necrotizing angiitis urticaria, Lyme disease.

B. Vesicles, bullae, or pustules with fever

  1. Drug hypersensitivities
  2. Toxic plant dermatitis
  3. Infection: Rickettsialpox, Varicella (chicken pox), Herpes Zoster, Disseminated herpes simplex, eczema herpeticum, eczema vaccinatum, disseminated vaccinia, Variola, Enterovirus infections, including hand foot mouth disease, toxic epidermal necrolysis, Staphylococcal scaled skin syndrome, erythroma multiforme bullosum.

C. Purpuric macules, purpuric papules, or purpuric vesicles & fever

  1. 1. Drug hypersensitivities
  2. 2. Bacteremia: Meningococcemia, Gonococcemia, Staphylococcemia, Pseudomonas bacteremia, SBE, Enterovirus infectins, Rickettsial diseases (Rocky Mountain spotted fever, Typhus louse borne, "allergic vasculitis, Purpura fulminans).