Many artistes love to go for “gua sha” and upload their photos which usually frighten the netizens. Gillian Chung (鍾欣潼) shared photo of her back after going for the treatment and it was considered scary. On 10th May 2019, Monica Chan (陳法蓉) showed photo of her neck and back covered with “blood stains” after going for “gua sha”. Many netizens remarked it was terrifying and it resembled to abuse. Monica explained: “The effects after “gua sha”! It helps to detox the body and I feel extremely tired now. Good night!”

Source: https://ol.mingpao.com/ldy/showbiz/latest/20190511/1557548235296/%E3%80%90%E4%BB%A5%E7%82%BA%E9%81%AD%E3%80%8C%E5%AE%B6%E6%9A%B4%E3%80%8D%E3%80%91%E9%99%B3%E6%B3%95%E8%93%89%E5%88%86%E4%BA%AB%E5%88%AE%E7%97%A7%E7%85%A7-%E7%B6%B2%E6%B0%91%E5%97%8C%E6%81%90%E6%80%96