Hand, foot and mouth disease (HFMD) is caused by a virus (usually from the coxsackie group of enteroviruses, particularly coxsackie virus A16). It causes blisters on the hands and feet, in the mouth and often in the ‘nappy’ area. It is generally only a mild disease that lasts seven to ten days.
https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/hand-foot-and-mouth-disease

