Strychnine, with the efficacy of dispersing knots and swelling, clearing channels and relieving pain, can be used for carbuncle (a kind of poisonous sores, occurring on the surface of the body, limbs, internal organs of the acute suppurative disease), swelling and pain of bone fracture, bruises, rheumatism and paralysis, sore throat, numbness and paralysis, etc.. Strychnine is good at clearing the channels and relieving pain, and it is the key medicine for treating injuries and relieving pain in the Department of Injury Medicine, which can treat fracture and swelling pain, bruise injury, blood stasis and swelling pain; it can open the meridians and channels and penetrate to the joints, and has strong pain-relieving power, and it is the commonly used medicine for the treatment of numbness and paralysis, rheumatism and paralysis, and the pain of contracture. It can disperse knots and eliminate swelling, as well as clear blood heat, and can be used in malignant sores, carbuncles and gangrene. Strychnine is poisonous, prohibited for pregnant women, athletes should not be used with caution, should not be served for a long time and raw; the toxic components of this drug can be absorbed through the skin, and should not be applied externally over a large area. Strychnine must be used under the guidance of a doctor, and should not be used on its own to avoid adverse effects.