Fermented Black Bean Decoction，*Formulas for Universal Relief*, Volume 306.，During the spring and summer months, there is a type of multicolored caterpillar found among trees and on walls that is extremely poisonous. If a person comes into contact with it, the caterpillar releases tiny hairs onto the hands and feet; these penetrate from the skin to the flesh and from the flesh into the bone. At first, the skin and flesh feel slightly itchy, but pain gradually sets in. After ten or so days, the itching remains on the surface while the pain is internal. Scratching the affected area causes alternating pain and itching, inevitably leading to the decay of both bone and flesh, posing a threat to one’s life.This condition is known as “being struck by an arrow,” and no other medicine can cure it.
Fermented Black Bean Decoction
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Formulas Name : Fermented Black Bean Decoction
Chinese Name : 豆豉汤
Drug Formulation
1 bowl of good fermented black soybeans.
Source
*Formulas for Universal Relief*, Volume 306.
Processing
Mix half a zhan of clear oil with the fermented soybeans and pound them into a paste.
Benefits
During the spring and summer months, there is a type of multicolored caterpillar found among trees and on walls that is extremely poisonous. If a person comes into contact with it, the caterpillar releases tiny hairs onto the hands and feet; these penetrate from the skin to the flesh and from the flesh into the bone. At first, the skin and flesh feel slightly itchy, but pain gradually sets in. After ten or so days, the itching remains on the surface while the pain is internal. Scratching the affected area causes alternating pain and itching, inevitably leading to the decay of both bone and flesh, posing a threat to one’s life.This condition is known as “being struck by an arrow,” and no other medicine can cure it.
Instructions for Use
Apply a thick layer to the painful and itchy areas. After about an hour, the fengchi’s potency will penetrate the bones, drawing out the caterpillar hairs, which will become clearly visible. Remove the fengchi and bury it in the ground; then wash the affected area with a decoction of fragrant white angelica. If the flesh has already rotted, apply a paste made from ground cuttlefish to heal it.
Copyright: Excerpt from *Formulas for Universal Relief*, Volume 306., Copyright belongs to the Original Author and all original sources, This article was shared by DeDe on August 24, 2026, Please credit the source and include a link to the original article when reposting.
Terminology Proofreading: [Cheng Bo] | August 24, 2026 Reviewed by: [Wang Zhongxiang, Associate Chief TCM Physician (China)] | August 24, 2026
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Fermented Black Bean Decoction,During the spring and summer months, there is a type of multicolored caterpillar found among trees and on walls that is extremely poisonous. If a person comes into contact with it, the caterpillar releases tiny hairs onto the hands and feet; these penetrate from the skin to the flesh and from the flesh into the bone. At first, the skin and flesh feel slightly itchy, but pain gradually sets in. After ten or so days, the itching remains on the surface while the pain is internal. Scratching the affected area causes alternating pain and itching, inevitably leading to the decay of both bone and flesh, posing a threat to one’s life.This condition is known as “being struck by an arrow,” and no other medicine can cure it.