Gua sha Gua sha (刮痧; guāshā) is abrading the skin with items of smooth jade, bone, animal tusks or horns or sleek stones; right up until pink spots then bruising go over the region to which it is completed. For more on the idea of how external Heat penetrates, https://edgar8fdyw.digitollblog.com/23706267/chinese-medicine-asheville-things-to-know-before-you-buy