That funny bone area became sore from resting my elbow on a desk and now my pinky finger is somewhat numb. will this go away? is it nerve damage?

Perhaps.: This condition sounds like "cubital tunnel syndrome" which is a nerve irritation and possible compression of the ulnar nerve as it courses along the inner elbow. continually working with a bent elbow, compression on arm rests and a few other factors are often associated with this condition. You should receive a nerve conduction study and be seen by a specialist to help this condition.