Depends on variables
Hfm varies more in intensity than anything.
Some kids can have it and run a brief temperature and never show other symptoms. Some have fever
, localized spots on their wrists & nothing else. Some have terrible mouth sores, spots on wrists/forearms/legs feet / bottom/ have cramping/ loose stools
. Fever, loose stools and cramps can lead to dehydration
so the focus of therapy is directed at hydration.