OWWWWWW If the milk is already hardening, hand expression isn't possible. It depends on how bad it's gotten. After 6 to 8 hours of not nursing, it's VERY painful.
The human term is manual expression. A breast pump is desirable, but it's not needed. It's too bad she didn't learn this technique. I did, from La Leche League, and it came in handy (pun intended) on a few occasions.