“Gua means ‘scrape’ and Sha means ‘petechiae’ (tiny, flat red, purple spots).
The key point is to scrape the skin to invigorate blood flow, release heat-toxins, stimulate lymphatic drainage, activate various points of the body, and bring the body’s helpful natural chemicals to the area by stimulating an immune response.
It will create some temporary discoloration on the skin, which can look dramatic. But rest assured, there is no pain and the petechiae usually goes away within days.
Uses: improve circulation, muscular pain, and stimulate the body's natural healing.