Answer
If your query is about pubic hair, it would not be permissible since this will entail a female looking into the private part of another female. This is not permissible according to the Shari?ah.
If your question relate to those hair which you can remove, e.g. moustaches, beard, etc. then in this specific situation, it will be permissible. However, it is not permissible for female to trim/cut hair of the head.
and Allah Ta’ala Knows Best
Mufti Ebrahim Desai