What achievements has Hua Tuo made in acupuncture?

In acupuncture, Hua Tuo also has a lot of research. During acupuncture, he told the patient that when he felt pain, he asked the patient to say "yes" and he immediately pulled out the needle. Today's "new acupuncture therapy" is actually in the same strain as Huatuo's acupuncture therapy. Hua tuo also proposed for the first time to use acupuncture points on both sides of the spine to treat diseases. Until now, people still call these acupoints "Huatuo Jiaji points". Hua Tuo also knows that although these acupoints have remarkable therapeutic effects, they are not well tied, which is easy to hurt the lungs and even cause life-threatening. On one occasion, a man named Xu Yi saw Hua Tuo and said that he had an injection yesterday. As a result, after the injection, his condition did not improve, but he kept coughing. After giving Xu Yi a detailed examination, Hua Tuo quietly told his family that the doctor's needle might have penetrated Xu Yi's internal organs and there was no way to treat it. Xu Yi really passed away soon. Now it seems that the doctor may have injured Xu Yi's pleura, and air entered the chest cavity, which oppressed the heart and lungs, resulting in an "artificial pneumothorax". Medical technology at that time was difficult to treat.