FYi, son had rehab, try to heal without surgery, did not work, then hamate surgery, then a "do over" as first surgery did not take out the entire hook by the "hand DR. that wrote the textbook on hand/wrist surgeries".
Moral of the story, we are all human, but lets learn from others and that is, 1. get the surgery asap, skip trying to heal on own just fracture at the most inconvenient time 2. make sure to TELL the DR to take out the hamate to the base so no more fractures can result from swinging a bat.
Also, if in season, and fracture happens and need the season for stats for college recruiting, you might consider: anti inflamms ibuprofens, naproxen, or even mobic. And a side wrist brace so can not overextend wrist to side which creates tons of pain. We used nylon camera strap or suitcase strap, with batting glove, worked great better than a tape job which does give.
good luck!!!!