A doctor can tell if your child has hand-foot-and-mouth disease by the symptoms you describe and by looking at the sores and blisters.
Roast the beets for 50 to 60 minutes. Cook the beets until tender, checking them by inserting a fork into the center of each beet. When the fork glides in easily, the beets are tender enough to remove from the oven.
Heat the oven to 400 degrees F. Coat the beets with 2 tablespoons of the olive oil and wrap with foil. Place beets in a medium roasting pan and bake until tender when pierced with a fork â about 45 minutes. Unwrap the beets and let cool for 10 minutes. Slip off the skins with a paring knife.