I had it in my daycare last year ~ twice within a few months
I also had one of my daycare Mom's catch it too.
There is nothing a Doctor can give for it, it has to just run it's course. My crew all caught it, including my own. I had my Mom come to our home for basically the month to be with my kids and keep them separate from the daycare and the daycare kids were asked to stay home until they were able to participate as they all had the sores in their mouth, couldn't eat, fever and just needed to be home. Once they all started to eat and fever gone, they came back after a week....then it came back! My Mom who was ready to leave just threw all her clothes in the washing machine and stayed longer and 2 of my daycare kids were off again for another week. While I bleached EVERYTHING !!
Nasty pain in the butt but very common in daycares