Hi! My Husband Hit His "funny Bone" With A Great

Hi! My husband hit his "funny bone" with a great amount of force about 5 days ago. His ulnar nerve was hit severely enough that he has not seen improvement in the last 3-4 days. He has the typical tingling and weakness in his hand, particularly in his pinky and ring finger. Should he go to the doctor? What could a doctor do to expedite the healing process?
Thank you