i had an accident 9 months ago where three heavy boxes fell on my left arm, i am in constant pain have burning sensation, pins and needles and get electric shock in my fingers, it used to be from my elbow to my hand now my whole arm is hurting. i have seen a pysiotheropist and the pain clinic but they said it will get better in time and gave me some cream. it doesn't seem to want to get better and is getting me down as no matter what i doing im in pain. any help would be appreciated