Strychnine has the effects of clearing the channels and relieving pain, dispersing knots and subduing swellings. Strychnine is bitter in taste, warm in nature, and highly toxic, and is attributed to the spleen meridian and liver meridian. It is used for rheumatic paralysis, numbness and paralysis, bruises and injuries, carbuncle and gangrene (a kind of poisonous sores, occurring on the surface of the body, limbs, internal organs of the acute suppurative disease), swelling and pain; the sequelae of polio, rheumatoid arthralgia, etc. It has a strong toxicity. This product has great toxicity, overdose can easily lead to poisoning. High blood pressure, heart disease, liver and kidney insufficiency, weak and pregnant women are forbidden to take, should not be served for a long time and raw, the toxic ingredients can be absorbed through the skin, and should not be applied externally over a large area. Athletes should be cautious. If patients need to use the drug, it is recommended to go to the regular hospital in time, consult a traditional Chinese medicine practitioner to identify the guidance, follow the doctor’s instructions to standardize the treatment, do not blindly self-medication, so as not to delay the condition.