Better than before

A: How is your father?
B: Better than before.
He will take time to recover fully.
A: Let him take enough rest after recovering.
Please correct all.

It’s okay apart from ‘after recovering’ (he needs rest during recovery, not after) though a little stilted.

How is your father?
He’s better than he was before, thanks, but his recovery will take time.
Try to make sure he gets enough rest.