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Cupping, an alternative therapy technique that involves external suction on the skin, has been shown to ease the pain of carpal tunnel syndrome.
A German study published in The Journal of Pain showed that an external suction technique mainly used outside the U.S., called cupping, is effective for providing temporary relief of pain from carpal tunnel syndrome (CPS).
Researchers from Immanuel Hospital Berlin randomly divided fifty-two CPS patients into treatment and control groups. The treatment group was given wet cupping therapy, in which cupping glasses are applied to skin overlaying the trapezius muscle following five to 10 skin punctures with a sterile lancet. A partial vacuum is created by electromechanical or manual suction within the cupping glass after it is applied to the skin.
The technique is used as a healing method in China, India, Arabia, Central Europe and parts of Africa. Cupping is applied to defined zones of the shoulder triangle, which are connective tissue zones at the shoulder-neck region. The technique is believed to increase microcirculation to help relieve CPS symptoms.
Results showed that CPS patients given cupping treatment experienced a highly significant decrease in CPS pain and other symptoms. A single treatment improved functional ability and quality for life for a week. The authors offered three possible explanations for the positive therapeutic action: