Unfortunately, there is not medicine to cure it. It has to run it's course. ...and yes, it sucks big time. I got it from both of my kids. The first time wasn't a big deal. I had a couple of bumps on the tips of my fingers and a sore in my mouth. The second time, I got it really bad. I had a bunch on my feet and hands and a really bad one in my mouth. It was so bad in mouth that I didn't eat for a day and a half and after a while I was so hungry, I forced myself to eat and endure the pain. I ended up losing about 5 pounds from the ordeal. With the bumps of my feet, I could barely walk. Everytime I took a step, it felt like I was walking on pins and needles. With the bumps on my hand, I could hold a pen to write. Again, it felt like pins and needles when I wold try and write.
The kicker is after the virus is cleared. Everywhere where you had the little bumps, the cells basically die so the skin basically peels off because the dead cell is being replaced with living cells in your skin. So you basically are peeling like a sun burn. My kid and I were peeling like crazy.
I was miserable so I definitely feel for the kids. If your child has it, please be sympathetic and pretty much give them whatever they want.