Relying on Modern Medicine to Save Cao Cao at the Beginning

On the first day after traveling through time and becoming a pawn in Cao's camp, Shen Qing was tied up in front of Cao Cao as a spy. Seeing that he was about to be beheaded, he shouted in a hurry: "I can cure the prime minister's head disease!" After anesthesia with silver needles and a craniotomy to remove the tumor, Hua Tuo was astonished. Until one night, Cao Cao rushed into the camp with a splitting headache, only to see Shen Qing resuscitating the seriously injured Guan Yu using modern blood transfusion methods—— "Yun Chang is a loyal man and should not die here!'' "Mr. Shen, how many secrets do you have? "