In ancient times people could use 3 things to relieve pain if they were in a lot of pain. These 3 things, were acupuncture, vinyl and marijuana. All of these things relieved people's nerve pressure, which in turn relieved their pain. The 1st one is acupuncture. In the Yellow Emperor's Classic of Internal Medicine, it is suggested that you can get a patient's pain relieved by means of acupuncture. The learned strength of the human body can be enhanced by means of acupuncture, and those ancient doctors would often insert needles into human acupuncture points to relieve the patient's pain. But this practice was actually unpopular in the 17th century and there are still people who call it illegal. It wasn't until 1949 that acupuncture was recognized as a medical treatment. Since then acupuncture has become very popular both in China and in Japan. The 2nd one is vinyl. In 1930, ethylene was considered a drug for general anesthesia. A surgeon was using ethylene and told his patients that this substance would cause them to go into a coma within 3 to 8 minutes of inhalation. This ethylene is something that affects the patient's nerves, leaving the patient without any feeling of euphoria or suffocation. But when the doctor removes the anesthesia mask suffering from ethylene, the patient comes out of it in a very short time. An item like vinyl can be said to be less toxic to a person's nervous system and is also a more scientific item for treating pain. The 3rd one is marijuana. As early as 2900 B.C., Chinese monarchs had already discovered marijuana as a painkiller. And marijuana was also spread from China to the rest of the world at that time. Marijuana can make the patient's ear pain situation less painful. Hua Tuo, a famous Chinese doctor at that time, blended marijuana with wine to create an anesthetic. This anesthetic could be used in surgery to ease the pain of the patient. It is important to know that in ancient times, when surgery was performed without anesthetics, it was very painful for the patient. Some patients often fainted because they could not bear the pain.