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The *Bingji* (Pathogenesis) discusses that wind-stroke due to trauma (Po Shang Feng, a condition characterized by spasms following injury) may arise from sudden trauma where wind-pathogen invades and transmits through the meridians, causing convulsions and alternating chills and fever. The body may arch backward, and the mouth may remain clenched shut. In severe cases, the pathogenic qi enters the Zang organs. Alternatively, it arises when various sores fail to heal; deficiency of Ying and Wei (Defensive and Nutritive Qi) prevents muscle regeneration, leaving the sore open for external wind-pathogens to enter, resulting in wind-stroke due to trauma. Regarding unhealed sores, the world generally attributes this to heat-toxin from moxibustion, calling it "heat-sores," unaware that fire-heat pathogens lingering in the body can cause countless variations along the meridians. Mildly, it presents as fever; severely, it generates wind leading to convulsions, opisthotonos (arched back), trismus (lockjaw), and deviation of the eyes. There are also cases where trauma occurs without moxibustion, yet the disease develops because a white scab forms over the wound, closing the orifice and blocking the free flow of Qi, causing Yang-heat to easily stagnate. Excessive heat then generates wind.

According to this discussion, there are four causes: two involve wind entering through open sores, resembling external causes; one involves heat accumulation from moxibustion, resembling neither-internal-nor-external causes; and one involves internal heat generating wind due to closed sores, resembling internal causes.

I respectfully note: Ancient formulas and discussions on wind-stroke due to trauma are scarce. Is it not because this disease was discussed alongside Zhong Feng (Wind Stroke, typically referring to apoplexy or facial paralysis)? Thus, no separate category was established. Only Liu Hejian, in his treatise on the exterior, interior, and middle methods of Shang Han (Cold Damage), provided detailed treatments. He stated that etiologies include external wind invasion or internal heat/moxibustion effects, which resemble Zhong Feng. However, while Zhong Feng patients may survive for years, those with wind-stroke due to trauma often die quickly. This is because Zhong Feng has distinctions between involvement of meridians, Fu organs, and Zang organs, with Zang involvement being hardest to treat. In contrast, wind-stroke due to trauma often begins with excessive bleeding or early closure of wounds leading to blood stasis. Since blood belongs to Yin and is governed by the Five Zang organs, once affected by wind, although initially at the exterior, it rapidly transmits to the Zang organs, leading to high mortality. Furthermore, some open sores exposed to cold and wind suffer no harm, while sealed wounds avoiding wind still become diseased; some seemingly safe patients suddenly develop severe symptoms. Generally, this affects those with deficient internal Qi and stagnant heat. Those with robust internal Qi and no stagnant heat remain unaffected even if injured.

Treatment Methods for Wind-Stroke Due to Trauma:

Qiang Huo Fang Feng Tang (Notopterygium and Saposhnikovia Decoction): Treats pathogenic factors initially at the exterior.
Ingredients: Qiang Huo (Notopterygii Rhizoma et Radix), Fang Feng (Saposhnikoviae Radix), Gan Cao (Glycyrrhizae Radix et Rhizoma), Chuan Xiong (Ligustici Chuanxiong Rhizoma), Ben Cao (Ligustici Rhizoma), Dang Gui (Angelicae Sinensis Radix), Shao Yao (Paeoniae Radix Alba) (each 4 liang); Di Yu (Sanguisorbae Radix), Xi Xin (Asari Radix et Rhizoma) (each 2 liang).
Preparation: Coarsely crush the herbs. Take 5 qian per dose, decoct in water, and take hot at any time. If fever is severe, add Da Huang (Rhei Radix et Rhizoma) and Huang Qin (Scutellariae Radix) (each 2 liang).

Fang Feng Tang (Saposhnikovia Decoction): Treats wind-stroke due to trauma presenting like exterior syndrome of Shang Han, not yet transmitted to the interior; urgent administration required.
Ingredients: Fang Feng (Saposhnikoviae Radix), Qiang Huo (Notopterygii Rhizoma et Radix), Du Huo (Angelicae Pubescentis Radix), Chuan Xiong (Ligustici Chuanxiong Rhizoma) (equal parts).
Preparation: Coarsely crush. Take 5 qian per dose, decoct in water. Best taken with adjustment of Wu Gong San (Centipede Powder) for significant effect.
Note: Both above formulas utilize herbs belonging to the Three Yang meridians.

Wu Gong San (Centipede Powder):
Ingredients: Wu Gong (Scolopendra), Biao (Fish Maw/Collagen).
Preparation: Grind into fine powder. Mix with Fang Feng Tang. If exterior symptoms resolve but signs suggest transmission to the interior, regularly use Zuo Long Wan (Left Dragon Pill, composed of the four ingredients in Jiang Biao Wan mentioned later).

Wu Gong San (for Interior Harmony until Cure):
Ingredients: Wu Gong (Scolopendra) (1 pair), Biao (Fish Maw/Collagen) (5 qian), Zuo Pan Long (5 qian, stir-fried until smoke ceases; also known as wild pigeon feces).
Preparation: Grind into fine powder. Take 1 qian per dose, mix with clear wine. For treating interior conditions until cure. Contraindicated if excess interior syndrome exists. Next, use purgative method: Mix 4 qian of Wu Gong San with half a qian of Ba Dou Shuang (Croton Seed Frost), form pills using cooked rice dough, size of mung beans. Take 1 pill, increasing to 6-7 pills, delivered with clear wine mixed with a little Wu Gong San. Stop when bowel movement is achieved.

Fa Biao Xiong Huang San (Exterior-Releasing Realgar Powder): For use when interior is harmonized until cure.
Ingredients: Xiong Huang (Realgar) (1 qian), Fang Feng (Saposhnikoviae Radix) (2 qian), Cao Wu (Aconiti Radix Preparata) (1 qian).
Preparation: Grind into fine powder. Take one "zi" (a small unit of weight) per dose, mix with warm wine.

Tian Ma Xiong Huang San (Gastrodia and Realgar Powder): Treats exterior syndrome.
Ingredients: Tian Nan Xing (Arisaematis Rhizoma) (3 qian), Ban Xia (Pinelliae Rhizoma), Tian Ma (Gastrodiae Rhizoma) (each 5 qian), Xiong Huang (Realgar) (2.5 qian).
Preparation: Grind into fine powder. Take 1 qian per dose, mix with warm wine. If phlegm-saliva is present, add Da Huang (Rhei Radix et Rhizoma) as a purgative.

San Yin Fang Feng San (Three Causes Saposhnikovia Powder): Treats wind invading the sore orifice, neck stiffness, tight jaw, impending death. Also known as Yu Zhen San.
Ingredients: Fang Feng (Saposhnikoviae Radix), Tian Nan Xing (Arisaematis Rhizoma) (processed, equal parts).
Preparation: Grind into powder. Take 3 qian per dose, decoct in one large cup of urine from an uncircumcised boy until reduced to 70%, drink hot.

Xiang Jiao San (Gelatin Powder): Treats wind-stroke due to trauma with trismus and rigid straightening of the body.
Ingredients: Yu Jiao (Fish Glue/Collagen) (burned until 70% carbonized but retaining nature).
Preparation: Grind finely, add a small amount of She Xiang (Moschus). Take 2 qian per dose, mix with wine. If unable to drink wine, decoct Su Mu (Sappan Wood) in water and take.

Yuan Rong Formula: Treats critical wind-stroke due to trauma.
Ingredients: Chuan Wu (Aconiti Radix), Nan Xing (Arisaematis Rhizoma), Ban Xia (Pinelliae Rhizoma) (all raw), Tian Ma (Gastrodiae Rhizoma) (deprived of stem, equal parts).
Preparation: Grind into fine powder. Take 1 qian per dose, mix with Dou Lin Jiu (Soybean-infused Wine), take slightly warm. Follow with 1-2 cups of wine.

Formula for Treating Wind-Stroke Due to Trauma:
Take 7 Scorpion tails (Xie Shao), grind into fine powder, mix with hot wine, and take.

Note: The above eight formulas all belong to the treatment principles of the Jue Yin meridian.