Quoting CallMeMoses:" Yeah, OP, watch for her mouth, and keep her hands out of her mouth as much as possible."
If it is hand, foot and mouth, OP it is very communicable and the rash is normally found on the hands, soles of the feet /in between toes and blisters form in the mouth. Blisters are also sometimes seen on the back and torso.
The puss from the blisters which do also form on the other affected areas (not just mouth) and fecal matter are what makes it so communicable.
If it is hand foot and mouth given she has had it for a week she would be on the side of getting better now, but there is little that they can do for it and it will need to run it's course.