Gua means to scrape or rub. Gua Sha（Skinscraping） is one technique that intentionally raises Sha rash or petechiae. The area to be Gua Sha-ed is lubricated with oil. The skin is then rubbed with a round-edged instrument in downward strokes. One area is stroked until the petechiae that surface are completely raised. If there is no Blood stasis the petechiae will not form and the skin will only turn pink.
Gua Sha promotes circulation and normalizes metabolic processes. It is a valuable treatment for both external and internal pain, and facilitates the resolution of both acute and chronic disorders.