Hand, foot and mouth disease (HFMD) is due to an infection that usually causes a typical illness, including a typical rash. It is most commonly caused by the Coxsackie A16 virus. Some cases are caused by a different but related virus called enterovirus 71. Rarely, the same illness is caused by other strains of Coxsackievirus.
This is a companion discussion topic for the original article at https://patient.info/skin-conditions/viral-rashes/hand-foot-and-mouth-disease