Hurt my hand

At the end of Taekwon Do class today, we did a bit of breaking practice. And we did a bit of real breaking - concrete block of 2" thick. We all did palm heel strike - no way I'm going to use my knuckles... I broke one piece of of the block, didn't break any of my bones this time - good, but still my hand is a bit swollen, and it hurts try rotate my right wrist, I think I will see some bruse tomorrow. About 2 years ago around this time, I broke my right knuckle, it seems this time of the year is my unlucky time - practice for competitions, and black belt test...