I was boxing and hit the wrong way. now the side of my hand is bruised and swollen. what should i do?

Xray?: You mean the side with your pinky? The pinky is commonly fractured when a punch does not land properly and was previously known as a boxer's fracture. The fifth finger fracture is a little bit more forgiving than fractures of the other digits, but if having a lot of pain or can feel a deformity or crunching it is best to get an x ray and treatment.