Okay. Warts are caused by a virus.
Get to a Better Health, Whole Foods, or any good health food store. Or go online. what you want online would be Homecure.com. SilvaSolutions is the product name. I would get some liquid IN your daughter to knock out the virus. And don't overload on it. I would recommend the silvasolutions salve. This worked after freezing didn't.
If you want to keep in mind for future conditions, applying garlic (like the minced stuff ina jar) and raw onion, switching back and forth each night, also works. Get the extra long Curad bandaids. One night onion (just a couple of fresh minced pieces), the next minced garlic or the garlic juice (you can apply the juice directly to the gauze of the bandaid).
Both treatments have worked on my kids both with plantars warts, toe warts or eruptions on the skin.