USUALLY, bed-rest, ice withing 24 hrs, after that heat is ok...take a bath in epsom salts, take some pain and inflammation meds like ALEVE...IF this doesnt help..after 2 weeks, then do go to a DR for further evaluation....
although you should really go to your doctor incase you have damaged it and need medical treatment, you could take ibroprofen tablets (providing you haven't a reaction to it before), or use an anti-inflamatary gel to rub-on the area. both of those reduce swelling and work as an effective pain killer.
a tubi-grip bandage may also help swelling, support the arm, whilst also cushioning it against further damage.