M.Z.
Have you tried bribing her with going to get a manicure pedicure? Or if that's too pricey, giving her one at home. The nicer her nails are the more my daughter didn't bite them... In the car maybe she needs something else to chew on like a snack. Just throwing ideas out there. I remember when I was five my dad put tabasco on my nails and I NEVER chewed them again. Of course I think that is just MEAN!! I didn't think that nail polish that taste bad worked...