As per your case history it is evident that you did encounter mild head injury
along with contusion
of Rt hand. For recovery from the head injury you should go by the advice of the doctor concerned.
For recovery of the hand injury you should do hot fomentation twice a day followed by application of Voveron Emulgel or any other similar cream over the effected area. Then you should do regular exercises of the hand, wrist & elbow. You can take the help of a Physiotherapist also.
Wishing you a full recovery.
Dr R K Singh