Exanthems, Common
MANY SENIOR RESIDENTS DO ENCOUNTER EXANTHEMS

1st disease-Measles (Rubeola)
2nd-Scarlet fever
3rd-Rubella (German measles)
4th-Duke's disease
5th-Erythema infectiosum
6th-Exanthem subitum (Roseola)

http://www.dermpathmd.com/mnemonics/mnemonics_dermatitis.htm