L.S.
A very good friend of mine deals with the same issue. We have been friends since junior high and she has always had sweaty hands which seemed to get worse when she was nervous. Now, at 33, she just wipes her hands on her pants before she shakes someones hand. She does not get unusually sweaty anywhere else. She does not deal with other persperation issues, just her hands and feet. It was only a year ago when she allowed herself to get a pedicure. Now she goes every month! She is used to it. Everyone has their quirks... I have to wax my upper lip every 6 weeks. I hate it, but it is life. I would rather have sweaty hands. Tell your daughter that it will be ok and not to sweat it!:)
L.