Does Gua Sha have the efficacy and effect of treating cervical spondylosis?

Scraping treatment has the effect of dredging meridians, regulating qi and blood, can relieve cervical spondylosis caused by the neck local muscle stiffness, soreness and pain and other discomforts, but can not cure cervical spondylosis, scraping parts of the neck and shoulders, back, upper limbs generally.
The neck and shoulders and back cloth with the ducal vein, bladder meridian, scraping the ducal vein and bladder meridian can dredge the qi and blood, the qi to stop pain. In addition, the dong chi is the meeting of all yang, scraping on the dong chi can stimulate yang qi. The shoulder well point is located in the shoulder, scraping the shoulder well point can be the line of qi and blood, dispelling the wind and dispersing the evil.
The large intestine meridian, small intestine meridian circulation through the upper limbs, scraping the upper limbs can play a pass through the meridian, line qi and blood therapeutic effect, can relieve cervical spondylosis caused by the numbness of the upper limbs symptoms.
Scraping treatment needs to be carried out under the guidance of a professional physician, not blindly scraping on their own, so as to avoid injury.