In my dd case PC and TB coach tell her take the time to heal and pitching is like riding a bike and it will come back to her. DD is a hard worker and is not use to so much down time (from sports). She is learning that through all this PT, she is going to be a much better and stronger athlete with alot more knowledge how to maintain being a healthy athlete. In our case, we are making lemonade out of the lemons.
If she is missing the pitching, this would be a great time to sit down and discuss situations. What pitches to throw in which situations. What to do when the ball is hit to the pitcher with runners on various bases... Keeps her mind on the game while the body heals.