Scrape bone healing poison After seven army water flooding,guan yu,in FanCheng against FanCheng next defied.CaoRen command archer shooting arrows,guan yu,back in the right arm.Arrow,poison has profound toxic.Then invited for healing zhou tai well-known hua tuo.Hua tuo said to cut the flesh and bones,the poison will very pain,please pass feather the arm,head of living bind blindfolded.Guan yu said no.Side and brush aside hand blow,chess,no pain in the talk.And two mutually,guan yu hua tuo praised the admiration of guan yu hua tuo skill and courage.