CHQ: SUBJECT: Right Arm shoulder pain from top to bottom
  MESSAGE: hi, I am having an younger sister, who is suffering from severe pain of right shoulder from 7 days. The pain comes from right ear to right arm fingers and she was unable to lift a simple spoon or plate. Hence I request you to suggest me good medicine or treatment for this pain.
Summary: What are the causes and treatments for irradiating right shoulder pain and weakness in the arm?