Briefly, after a wing drop it is appropriate to stop the yaw with rudder. This may look like "picking up the wing", but if the aircraft rolls wings level, too much rudder has been applied.
More correctly, after the yaw has been stopped and the aircraft is no longer stalled, roll wings level with aileron.
I have heard (and been experimenting with) stating "remain in balance throughout the recovery" as a way of avoiding the impresson of picking up a wing with rudder.
That said, I'd rather have a student "pick up the wing with rudder" than they use aileron while still stalled!
Oktas8