Patients complaining of finger numbness who have been confirmed to have carpal tunnel syndrome by nerve conduction test are invited to participate in the study. The patients who agreed to be recruited are asked about their basic informations and the details of the carpal tunnel syndrome symptoms. Their hands will be examined. They are asked to fill in a questionnaire specific for assessing the symptom severity and the functional status of patients with carpal tunnel syndrome. They will then be assigned to one of the two treatment groups randomly and receive the respective treatment. They need to come back for follow-up at one month and to fill in the questionnaire again.