Stop the bleeding: Apply gentle but firm pressure with paper towels. You can use blood stop powder if necessary. Cornstarch works also.
Asses the injuries: Check to make sure there are no other injuries on the chicken. Look under wings, part feathers and check her all over. Puncture marks can be hard to find but easily get infected, so check very well. It's easier to treat them when they're fresh then try to treat them after they've become infected.