Bruised shin from sparring?

It's too late in the game to do something about the bruise. Just going to let it heal now in it's own good time. I am in a traditional school and we learn how to take care of bruises right after sparring. It speeds up the healing process. It's unfortunate that people today only want to know about how to hurt but can not even take care of simple bruises or other minor injuries. If your teacher does not know how to do these things ask around and learn from other martial artists. There are pressure points that heal, massage that helps with sore muscles and small injuries and some herbal lore. It does come in handy.