Compare the Efficacy of Acupuncture Therapy and Carbamazepine Oral Dosage in Patients With Carpal Tunnel Syndrome by Multiple Excitability Test

Inclusion Criteria: * Age greater than 20 years old * outpatient or inpatient subject with numbness of arm, clinically met diagnostic criteria of AAEM(American association of Electrodiagnostic Medicine CTS task force), and proven to have distal motor neurological disorder through nerve Conduction Study (distal motor latency \>4.6 msec, decreased SNAP \< 12uV or prolonged median sensory distal latency (palm to wrist) \> 2.5msec)。 * Willing to sign the Informed Consent form Exclusion Criteria: * subject with external hand injury or disformation * subject with Polyneuritis or Cervical nerve root lesions * Subject with peripheral hypertrophy, hypothyroidism, multiple myeloma, or amyloidosis * Allergic to Carbamazepine or similar type of medicine * inability to act independently, or in the opinion of the investigator, not suitable for the study * In the opinion of the investigator, the subject requires surgical repair of the Carpal Tunnel Syndrome, or the symptoms will be worsen result in irreversible damage to the subject if not treated with surgical repair within 3 months.