Maculopapular rash

• Common
  • Allergy to food or drug
  • Insect bites or stings
  • Antibiotic, anticonvulsant, or allopurinol adverse reaction
  • Chemotherapy
  • Enterovirus and echovirus infection
  • Fifth disease (erythema infectiosum)
  • Roseola infantum (sixth disease)
  • EBV infection (infectious mononucleosis)
  • Cytomegalovirus infection
  • Scarlet fever
• Uncommon
  • Toxic epidermal necrolysis or Stevens-Johnson syndrome
  • Drug reaction with eosinophilia and systemic symptoms (DRESS)
  • Erythema multiforme
  • Systemic hypersensitivity syndrome
  • Acute HIV-seroconversion exanthema
  • Acute hepatitis B virus infection
  • Acute hepatitis C virus infection
  • Rubella (German measles)
  • Measles (rubeola)
  • Meningococcus
  • Staphylococcal scalded skin syndrome
  • Toxic shock syndrome
  • Rocky Mountain spotted fever or Mediterranean spotted fever
  • Acute graft-versus-host disease (aGVHD)
  • Kawasaki disease (mucocutaneous lymph node syndrome)
  • Juvenile-onset or adult-onset Still disease
  • Secondary syphilis