Gua sha is a Chinese medicine treatment mostly used for cold, headache, nausea, muscle aches and pains, and can provide some relief for discomfort. After local application of vegetable oil, repeated scraping through the scraping board has the benefit of promoting local blood circulation and relieving pain, but scraping can also cause local skin damage, subcutaneous bleeding and other disadvantages: a. Benefits: 1. The actual fact is that you can find a lot of people who are not able to get the best out of your own home. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. In addition, it is not advisable to scrape the abdomen and lumbosacral area of pregnant women, which may have a negative impact on the fetal activity.