Get seen. If you think you have dislocated your elbow, you must get immediate attention. X-rays will be needed and a skilled physician will need to attend this to replace it to normal position either with sedation or under anesthesia. Fractures have to be ruled out, and the vascular supply has to be proven to be intact. You will need close follow up and therapy. Ice, elevation and obsrvation are needed.
Reduction. Dislocated elbows should be treated on an urgent basis and be reduced. This is most commonly done in the emergency room.