My daughter has two large ones on the balls of both feet. I talked to a couple other moms at the gym and there daughters have all had them too. I know it's a virus, and clearly it's at the gym. Is there anything I can be doing to prevent these? I was thinking maybe I could wipe her feet down with disinfecting wipes before and after gym, but I really don't know if this is gonna help. There are several barefoot communal areas in the gym, bathrooms, locker rooms.