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Whenever suffering from Cold Damage (Shanghan) or epidemic febrile diseases, regardless of whether the patient presents with Yin or Yang patterns, is an elderly person, a child, or a pregnant woman, if mistaken administration of drugs leads to critical illness nearing death, with deep and hidden pulse (Chen Fu) and unconsciousness, one may take Du Ming San (Life-Grabbing Powder), also known as Fu Mai Tang (Pulse-Recovering Decoction), after seven days have passed. This prescription is effective in nearly all cases without failure. It consists of Ren Shen (Ginseng Radix et Rhizoma) 1 liang, decocted in 2 zhong of water with strong fire until reduced to 1 zhong. After cooling it in well water, administer orally. Soon, sweat will appear on the nasal bridge, the pulse will recover immediately, and the condition will improve significantly, with the patient regaining consciousness. Su Taoguang, Vice Minister, stated that he used this formula to save dozens of people. It originates from Wang Kentang's *Bai Yi Xuan Fang*.

Regarding residual toxins from Cold Damage manifesting as swelling and hardness in front of, behind, and below the ears, use Jian Zhong Xiao Cao, Sheng Bai Ji (Bletilla Rhizoma), Sheng Bai Lian (Ampelopsis Rhizoma), Sheng Da Huang (Rhei Radix et Rhizoma), Sheng Da Ji Gen (Cirsii Japonici Radix), and Ye Zhu Ma Gen (Boehmeriae Caulis). Pound into a paste, add Mang Xiao (Natrii Sulfas) 1 qian, mix, and apply externally to the affected area, leaving the center open (Liu Tou). Change when dry. Adding Jin Xian Chong Lou (Paris Polyphylla Rhizoma) and Shan Ci Gu (Fritillaria Cirrhosa Bulbus) is particularly excellent. This method comes from *Shang Han Yun Yao*.

I have often wondered why most diseases are named after the pathogenic factors they contract, while "Zhong Feng" (Wind Stroke) is named after its symptoms, thus confusing later generations. Observe those suffering from Wind Stroke: they often collapse suddenly while walking, standing, sitting, or lying in a closed room. Some experience surging phlegm-saliva and loss of consciousness; some suffer flaccid paralysis of limbs, unable to support their body weight; some have hemiplegia; some present with deviation of the mouth and eye, and tendon pulling. At such times, there is no actual wind present, so how could it strike? Even if deficient evil or thief wind accidentally invades, it merely manifests as symptoms of the Six Channels (Liu Jing), affecting the skin and muscles. How could it lead to such severe unconsciousness? Then, what is the basis for naming it Wind Stroke? The human body is like a tree. The four limbs are like branches and trunks; the Seven Emotions and Five Wills are like violent winds and heavy rains; hunger, fullness, fatigue, and exertion are like daily erosion; worry and overthinking are like insect borings; excessive desires are like axe cuts. If a tree is eroded, cut, invaded, corroded, and chopped, it will fall even without violent wind. If a great wind uproots trees, can we blame the wind? Human Wind Stroke is no different. Liu Hejian said "extreme excess of the Five Wills," referring to the cause; Li Dongyuan said "disease of the original Qi," referring to the root; Zhu Danxi said "damp-heat generating phlegm," referring to the branch. However, the root lies in insufficiency of Kidney Yuan (Original Energy). If Kidney Yuan is not deficient, extreme emotions only show emotional disorders; insufficient Original Qi only shows deficiency syndromes; damp-heat phlegm only shows phlegm-heat syndromes. Only when the root is already deficient do the Five Wills, labor, and phlegm-heat take advantage, causing sudden collapse. At this moment, expelling phlegm makes it worse; descending Qi makes it more rebellious. Only in cases of locked jaw should Xi Xian San (Saliva-Thinning Powder) be temporarily used to open it, but this does not address the reality. Xue Lizhai used San Sheng Yin (Three Raw Decoction) with 1 liang of Ren Shen to drive out evil and tonify true Qi, acting like a general breaching gates. Liu Hejian created Di Huang Yin Zi (Rehmannia Decoction) to treat aphasia and leg weakness, specifically consolidating the root, which is like treating the disease at its source. Whenever I encounter this syndrome, upon careful investigation, it invariably stems from Heart-Kidney non-interaction. If Heart Fire fails to descend to the Kidney, use Gui Pi Tang (Restore the Spleen Decoction) to nourish Heart Spirit primarily, assisted by Ba Wei Wan (Eight-Ingredient Pill). If Kidney Water fails to ascend to the Heart, use Di Huang Yin Zi to tonify True Yin primarily, assisted by Du Shen Tang (Single Ginseng Decoction). Furthermore, patients must eliminate emotional disturbances and abstain from sexual activity. Mild cases can recover, severe cases can be prolonged, and with time, few fail to heal. Using wind-dispelling or phlegm-resolving drugs interferes with this, seeking the branch rather than the root; how can survival be expected?

Note: Wind Stroke is common in obese individuals, though rare in thin ones. Obese people often have Qi deficiency, leading to phlegm generation. If the root is unstable, like a tree with lush foliage but a hollow trunk, it falls easily. Treatment requires large doses of Ren Shen and Bai Zhu, assisted by phlegm-resolving herbs, followed by Kidney tonification. Thin people often have Blood deficiency, leading to internal heat. If worried excessively, like a tree with withered branches and leaves, nourishment is lost. Treatment requires cultivating True Yin, assisted by soothing depression, followed by Qi tonification. Since Spleen, Lung, Kidney, and Liver differ in Yin-Yang and Qi-Blood, treatments must be adjusted accordingly. Moreover, the Heart is the root of spiritual activity, and the Stomach is the source of grain Qi. If mental distress reduces appetite, blood vessels lack nourishment; if Stomach Qi is insufficient, the Five Zang organs lack support, failing to irrigate the body. Thus, the Heart and Stomach require attention. Alas, Wind Stroke mostly affects those consuming rich foods due to leisure, requiring consolidation of Kidney and Liver (Kidney stores essence, Liver ensures free flow); those eating coarse food due to sorrow require assisting Heart and Spleen (Heart governs worry, Spleen governs thought). These are the standards physicians must deeply understand. Otherwise, encountering this syndrome without investigating causes, lacking insight and skill, and blindly administering Niu Huang Wan (Calculus Bovis Pill) rarely saves lives. This should be a wake-up call.

Regarding the Five Terminal Signs of Wind Stroke: open mouth and closed eyes, relaxed hands with urinary incontinence, and snoring sounds indicate untreatable conditions; treatment is futile.
For facial deviation and paralysis, distinguishing left and right meridians, prioritize massive tonification of Qi and Blood, assisted by tendons-soothing and phlegm-expelling methods. Use ten parts tonification, never one part purgation.
For Wind Stroke flaccidity and inability to move, select pills like Ba Wei Wan or Shi Bu Huan Shao Dan, assisted by tonics like Bu Zhong Yi Qi Tang, Liu Jun Zi Tang, or Gui Pi Tang. Do not mistreat, lest you shorten lives.
Differentiate between Qi Strike, Cold Strike, Summerheat Strike, and Food Retention; treat separately. Do not mistakenly categorize them all as Wind Stroke.

Xi Xian San
Jiang Zi Ren (6 seeds, each halved) Ya Zao (3 qian, finely sliced) Ming Fan (1 liang)
Melt the alum first, add the other two ingredients, stir evenly. Wait until the alum dries and becomes powder. Take 3 fen per dose.

San Sheng Yin
Sheng Nan Xing (1 liang) Sheng Chuan Wu (0.5 liang, peeled) Sheng Fu Zi (0.5 liang, peeled) Mu Xiang (2 qian)
Take 1 liang of the above mixture, add Ren Shen 1 liang, decoct in water.

Di Huang Yin Zi
Huai Shu Di Ba Ji Tian (decentered) Shan Zhu Yu (pitted) Rou Cong Rong (wine-cleaned) Fu Zi (processed) Shi Chang Pu
Wu Wei Zi (crushed) Fu Ling Mai Men Dong (decentered) Yuan Zhi Rou (decentered, cleaned in Licorice decoction) Shi Hu (salt-water roasted) Zi Rou Gui
Equal parts. Take 5 qian per dose, add a little Bo He (Menthae Haplocalycis Herba), decoct with Sheng Jiang (Zingiberis Rhizoma Recens) and Da Zao (Jujubae Fructus).