While following Genghis Khan's Western Expedition, Guo Baoyu was hit by a sword, which directly hit him in the chest. At that time, doctors in the army could not cure him, but the more he treated the wound, the more serious the infection became. Just as his life was hanging by a thread, Genghis Khan ordered his men to kill the cow and put Guo Baoyu in its belly. A cow that was alive and kicking was cut open, and Guo Baoyu was stuffed in, and the whole body became bloody, but this method did not bring it back to life.
Guo Baoyu, who was thought to be unable to survive, woke up from a coma in his belly and began to recover at an alarming rate. And this example is not the first time. Genghis Khan used this method many times to save those who were seriously injured.
This method was handed down by the Mongols at that time, and Li Shizhen found it really effective after a particularly rigorous demonstration. Touching people's wounds with cow blood can make our wounds stop bleeding quickly, and the newly killed cows can also bring us life.