Effects of Gua Sha and Thermotherapy on Chronic Neck Pain

Gua Sha massage is a traditional chinese medical treatment. It is mostly used in the treatment of the common cold and pain syndromes. Gua Sha involves pressuring the skin by a round-edged instrument until small petechiae appear. This so called "sha", considered as the removal of blood stasis by traditional practitioners, will fade within a few days. Normally, this treatment is not considered as painful, but as relaxing and easing tense muscles. In this study, the investigators will investigate the effectivity of Gua Sha massage in treating chronic neck pain. The investigators will research effects on subjective pain intensity, neck pain specific disability and haptic perception.