Efficacy Assessment of Acupuncture on Chronic Neck Pain

INTERVENTION: Control Group:Superficial needle pricking on non‐standard points, which are 1 cm laterally from the standard points with local infrared therapy for 20 minutes ;Intervention Group:Standard acupuncture on the following points: DU14, SI15 (both sides) and Ex‐HN15 (both sides), with local infrared therapy for 20 minutes ; CONDITION: Chronic neck pain PRIMARY OUTCOME: Quality of life (SF‐36);Northwick Park (NPQ); INCLUSION CRITERIA: 1. Male or female, aging 18 to 45; 2. Frequently attacked by neck pain or neck stiffness, equal or more than once per month and lasting equal or more than 6 months, accompanied with or without positive result of physical examination on musculoskeletal system (including restriction of motion, or local tender point); 3. VAS score between 3 to 7; 4. not receiving any acupuncture therapy because of neck pain during the latest 6 months; 5. Willing to sign an informed consent.