Gua sha

Gua Sha Massage Gua Sha is used in China for more than two thousand years, gua sha means to scrape toxins. A method of promoting blood circulation and removing toxic heat, blood, and lymph from the body, gua sha involves scraping the skin with a flat tool to facilitate pain relief. Olive oil and herbs are usually applied to the skin to open pores, increase deep cleansing, and improve circulation.

Source: massagetherapy.com