Thanks for writing to us.
The pain on the right side is likely to be due to musculoskeletal origin. It could be due to an injury
to the area or a muscle spasm in the area. He needs rest, hot fomentation , pain killers and muscle relaxants for relief.
I hope this information has been both informative and helpful for you. You can consult me again directly through my profile URL http://bit.ly/Dr-Praveen-Tayal
Dr. Praveen Tayal