What plants in life can directly anesthetize people's nerves?

1. Datura, also known as the prostitute of angels. Leaves have musk flavor; Flowers are trumpet-shaped and have a unique smell; There are spikes on the capsule. Datura stramonium and Datura stramonium leaves can treat asthma spasm and hypersalivation. Flowers can cure toothache and are commonly used anesthetics in minor operations. Datura stramonium is highly toxic, and its leaves, flowers and seeds can be used as medicine. Pungent, warm, analgesic, anesthetic, antitussive and antiasthmatic. Indications: cough, asthma, facial sore, rectocele, rheumatism, traumatic injury, and can also be used as anesthetic. Mafeisan invented by Hua Tuo, a famous doctor in the Three Kingdoms period, mainly contains Datura stramonium.

2. Poppy, the milk of poppy (opium) contains a variety of alkaloids, morphine, codeine and thebaine, which have exciting, analgesic, antitussive and hypnotic effects on the central nervous system. Long-term use is addictive, chronic poisoning, and serious harm to the body. In China, poppy cultivation is strictly controlled, except for medical research.