How to make a Sprained FunnyBone feel better?

I went to SixFlags last night (amusement park) with some friends last night. We got on the Titan (24 story rollercoster) and I put my arms up during the drop and when we got to the bottom I banged my funny bone with extreme force on the seat. Ever since then it's been hurting really bad. I'm not sure if I tore a ligament or what? Because when i feel it I feel a huge bump, and it's a little loose. Any suggestions?