Bf injured his finger catching a ballgame. The finger is numb, but also very painful and swollen. Treatments?

He doesn't usually play catcher, but this was an emergency fill-in. He had a poor fitting catcher's mitt & after a 9 inning baseball game, his finger had gone numb. He iced it much of the night, in 15 min. intervals. A day later, the finger is still very numb, but also VERY painful and discolored from bruising. Any suggestions for treatment?