Dear jules,
If ringworm is what your daughter had, it would not go away in the winter and then return. But if you think that it still might be, you can try an over the counter antifungal cream like lotriman (I believe that is spelled correctly?), and you will see a difference in about a week. If not it probably is eczema, and you might ask her doctor if there are any other treatment methods you might try as your daughter is telling you that her current treatment is hurting her more.
I hope this has helped some.
Good luck.
Thank-You,
and May God Bless.
Vickie