Historical finding	Conditions
Chemicals	Contact dermatitis
Chronic illness	Dermatitis herpetiformis
	Seborrheic dermatitis
Contact with ill persons	Fifth disease (i.e., erythema infectiosum)
	Meningococcemia
	Roseola (i.e., exanthem subitum, sixth disease)
	Rubella
	Rubeola
	Scarlet fever
	Varicella
	Viral exanthem, nonspecific
Drug exposure	Lupus (subacute cutaneous lupus erythematosus)
	Drug eruption
	Urticaria (i.e., hives)
Hobbies	Contact dermatitis
Insect and arthropod exposure	Insect bites
	Lyme disease
	Rickettsialpox
	Rocky Mountain spotted fever
	Scabies
Occupational exposures	Contact dermatitis
Plant exposure	Contact dermatitis
Recent systemic symptoms, fever	Fifth disease (i.e., erythema infectiosum)
	HIV acute exanthem
	Kawasaki disease
	Meningococcemia
	Roseola (i.e., exanthem subitum, sixth disease)
	Rubella
	Rubeola
	Scarlet fever
	Varicella
	Viral exanthem, nonspecific
Sexual history	HIV acute exanthem
	Secondary syphilis
Travel	Insect bites
	Lyme disease
	Rickettsialpox
	Rocky Mountain spotted fever