Pain & swelling in the wrists can be due to:
1. Trauma/ injury
2. Inflammation of the joints & connective tissue
2. Anti inflammatory medications
4. Maintaining adequate hydration & proper nutrition.
So..it will be better to consult the Doctor & get a proper physical examination done.
So that appropriate management steps could be taken.
There is nothing to worry...your daughter will be fine.
Wishing her a Good Health. Let me know if I need to clarify further.
Thanks & take care.