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(Fa Re [Febrile sensation] refers to a continuous fever without cessation. Han Re [Alternating chills and fever] refers to chills subsiding followed by fever, and fever subsiding followed by chills, occurring in succession. Chao Re [Tidal fever] refers to fever that occurs at specific times and ceases at specific times, like the tide, never missing its schedule. If there is febrile sensation without aversion to cold accompanied by thirst, this is Wen Bing [Warm disease]. If body heat becomes burning after sweating, this is Feng Wen [Wind-warmth]. If there is febrile sensation, slight coldness of the hands or feet, and diarrhea with undigested food, this is Yin Zheng [Yin syndrome]. If there is hematochezia, qi stagnation, cold extremities, yet febrile sensation, this is "the deeper the heat, the deeper the coldness" (Re Shen Jue Yi Shen). Headache, febrile sensation, aversion to cold, but no body pain, indicates Shang Shi [Food injury]. No aversion to cold and no body pain indicate it is not Shang Han [Cold damage]; no headache and non-tight pulse indicate it is not Li Shi [Interior excess]; only vexatious heat indicates Vexation is due to Deficiency.]

Zhong Feng [Wind-stroke] presenting with immediate febrile sensation is because Wind pathogen has injured Wei Qi [Defensive Qi]. Shang Han presenting with delayed febrile sensation is because Cold pathogen has injured Ying Qi [Nutritive Qi]. The Classics state: "In the first or second day of Shang Han, some have already developed fever, while others have not." This is the case. Whenever there is Xi Xi Fa Re [Mild, persistent fever resembling feathers covering the body], accompanied by aversion to wind, aversion to cold, headache, and floating pulse, it belongs to Biao Zheng [Exterior syndrome]. This is caused by Wind-Cold lodging in the skin, causing obstruction of Yang Qi. It should be treated with diaphoresis. If urine is yellow, the pathogen is not on the exterior. Whenever there is Zheng Zheng Fa Re [Evaporative fever, feeling hot from within], accompanied by delirium, constipation, dark urine, abdominal fullness, aversion to heat, and slippery-excess pulse, it belongs to Li Re [Interior Heat]. This is caused by Yang Qi sinking into the Yin aspect. It should be treated with purgation. If urine is clear, the pathogen is not on the interior. Febrile sensation appearing in Shao Yin [Lesser-Yin] and Jue Yin [Terminal-Yin] meridians is called Fan Fa Re [Counterfeit fever]. Only Tai Yin [Greater-Yin] does not present with febrile sensation. If both Yin and Yang pulses are full and vigorous, and fever persists, the prognosis is poor. Diarrhea with fever, recurrent fever after sweating, rapid and restless pulse not relieved by sweating, delirium, and inability to eat indicate failure of Yin and Yang interaction, which is fatal. Lan Tai Zhi Li [Treatment Principles of the Imperial Library] states: Pathogens in the Three Yang meridians, Tai Yin syndrome often resembles tidal fever but differs; pathogens in the Three Yin meridians, Shao Yin syndrome often resembles irritability but differs.

Febrile sensation, aversion to cold, and floating pulse belong to the Exterior, i.e., Tai Yang [Greater-Yang] syndrome. (Formula discussions see Tai Yang Disease section.) Febrile sensation, sweating, no aversion to cold but aversion to heat belong to the Interior, i.e., Yang Ming [Bright-Yang] syndrome. (Formula discussions see Spontaneous Sweating section.) Febrile sensation, wiry-thin pulse, and headache belong to Half-Exterior Half-Interior, i.e., Shao Yang [Lesser-Yang] syndrome. (Discussions see Bitter taste and dry throat section.) Febrile sensation with vomiting is treated with Xiao Chai Hu Tang [Minor Bupleurum Decoction]. (Discussions see Vomiting section.) Febrile sensation with cough and unresolved exterior is treated with Xiao Qing Long Tang [Minor Blue Dragon Decoction]; if accompanied by hypochondriac pain and frequent retching, treat with Xiao Chai Hu Tang plus Gan Jiang [Dried Ginger] and Wu Wei Zi [Schisandra Fruit]. (Formula discussions see Cough section.) Febrile sensation with wheezing and unresolved exterior is treated with Xiao Qing Long Tang minus Ma Huang [Ephedra] plus Xing Ren [Apricot Seed]; if accompanied by chest fullness, treat with Ma Huang Tang [Ephedra Decoction]. (Formula discussions see Wheezing section.) Febrile sensation with thirst may belong to the Exterior or the Interior; treatment methods and formulas are numerous. (See Thirst section.)

If fever resolves through sweating, but restlessness recurs after half a day, with floating-rapid-large pulse, another diaphoretic treatment is appropriate, using Gui Zhi Tang [Cinnamon Twig Decoction]. (Detailed discussion see Vexation section.)

After sweating, aversion to wind and cold indicates deficiency; no aversion to cold but only aversion to heat indicates excess. One should harmonize the Stomach Qi, using Tiao Wei Cheng Qi Tang [Regulate the Gut and Order the Qi Decoction]. (The Classics state: "Sweating with no aversion to cold indicates the exterior is resolved but the interior is not harmonized; give Tiao Wei Cheng Qi Tang to harmonize the Stomach.")

In Tai Yang disease, if after three days of sweating the condition remains unresolved and there is evaporative fever, the pathology is in the Stomach. Treat primarily with Tiao Wei Cheng Qi Tang. (Haizang commentary: Da Huang [Rhubarb Root and Rhizome] drains excess, Mang Xiao [Mirabilite] softens hardness, Gan Cao [Licorice Root] harmonizes the middle. It can only be used when all three signs of Dryness, Excess, and Hardness are present.)

**Tiao Wei Cheng Qi Tang Formula**
Da Huang (1 liang, Haizang commentary: Soak in wine. Since pathogens reside in high positions, they cannot be reached without wine, just as objects on high peaks require shooting to retrieve. Thus, wine soaking guides the medicine upward. If used raw, its bitter-draining action is too harsh and may leave high-level pathogenic heat, leading to post-recovery symptoms like red eyes, throat closure, or head swelling due to heat generating above the diaphragm.) Gan Cao (0.5 liang, roasted, Haizang commentary: Sweetness moderates.) Mang Xiao (9 qian, Haizang commentary: Pungency moistens, Salty softens.) Crush the herbs, add one cup of water, boil Da Huang and Gan Cao to 70%, strain, add Mang Xiao, heat briefly until boiling, and take warm in small amounts frequently.

Cheng Wuji commentary: *Nei Jing* states: "Heat rampant inside is treated with salty-cold, assisted by bitter-sweet." Mang Xiao is salty-cold to remove heat; Da Huang is bitter-cold to purge excess; Gan Cao is sweet-neutral to assist the two in pushing out the old and easing the middle.

Febrile sensation with sweating that does not resolve, epigastric fullness-hardness, vomiting, and diarrhea are treated with Da Chai Hu Tang. (Discussions see Fullness section.) After sweating, if the body feels burning hot, pulse is floating, sweating occurs, body feels heavy, drowsiness increases, and snoring appears, this is Feng Wen [Wind-warmth]. (Discussions see Wind-warmth section.) After sweating, if fever persists, palpitations occur, dizziness appears, muscles twitch, and the body trembles as if falling, use Zhen Wu Tang [True Warrior Decoction]. (Discussions see Diarrhea section.) If sweating leads to unresolving heat, internal tension, limb pain, diarrhea, cold extremities, and aversion to cold, use Si Ni Tang [Four Counterflow Decoction]. (Discussions see Diarrhea section.) Profuse sweating with full and vigorous Yin and Yang pulses that do not resolve indicates death. (*Nei Jing* says: "In Warm disease, if sweating is thorough but fever returns, pulse is rapid and restless, not relieved by sweating, with delirium and inability to eat, it is called Yin-Yang Jiao [Intersection], which is fatal.")

In Tai Yang disease, if initial sweating fails to resolve the condition and purgation is applied, yet the pulse remains floating, the disease will not heal. A floating pulse indicates the pathogen is external; applying purgation incorrectly causes failure to heal. Now that the pulse is floating, we know the pathogen is still on the exterior. We must release the exterior to achieve healing. Gui Zhi Tang [Cinnamon Twig Decoction] is the primary formula.

After sweating and purgation, if headache and fever persist, along with epigastric fullness and difficulty urinating, use Gui Zhi Qu Gui Jia Fu Ling Bai Zhu Tang [Cinnamon Twig Decoction minus Cinnamon Twig plus Poria and Atractylodes Macrocephala Decoction]. (Discussions see Chest Binding section.) After severe purgation, if body heat persists and there is painful knotting in the heart region, treat primarily with Zhi Zi Chi Tang [Gardenia and Fermented Soybean Decoction]. (Discussions see Heart section.) After severe purgation, if body heat persists with mild vexation, use Zhi Zi Gan Jiang Tang [Gardenia and Roasted Ginger Decoction]. (Formula discussions see Vexation section.) In Yang Ming disease, after purgation, if there is external heat, warm hands and feet, mental anguish (Ao Nao), hunger but inability to eat, and only sweating on the head, treat with Zhi Zi Chi Tang. (Discussions see Vexation section.)

Tai Yang disease should present with aversion to cold and fever. If now there is spontaneous sweating, no aversion to cold, fever, and a fine-rapid pulse at the Guan position, this is due to the error of emesis. Emesis performed on days 1-2 causes hunger in the abdomen but inability to eat; emesis on days 3-4 causes dislike of congee and desire for cold food, with morning intake and evening vomiting. All these result from erroneous emesis. This is called Minor Reversal. (Cheng Wuji commentary: Aversion to cold and fever are Tai Yang exterior signs. Spontaneous sweating, no aversion to cold, and fever are Yang Ming signs. Originally a Tai Yang exterior disease, the doctor erroneously used emesis, damaging Stomach Qi and allowing exterior pathogens to transmit to Yang Ming via deficiency. The fine-rapid Guan pulse confirms this. On days 1-2, exterior pathogens are cold and not yet transformed into heat; emesis transmits cold to the Stomach, causing deficiency-cold, hence hunger but inability to eat. On days 3-4, exterior pathogens have transformed into heat; emesis transmits heat to the Stomach, causing deficiency-heat, hence dislike of congee and desire for cold food, resulting in morning intake and evening vomiting. Morning intake and evening vomiting occur because the deficient Stomach cannot digest food, which stays and is vomited later. Knowing this is caused by physician-induced Stomach deficiency via emesis. Using emesis on Tai Yang disease is not reversal, but transmission to Yang Ming makes it a reversal. However, since Yang Ming is still a Yang meridian despite being an organ fu, it is not Major Reversal but Minor Reversal.)

If fever recurs after recovery, use Xiao Chai Hu Tang [Minor Bupleurum Decoction]. If the pulse is floating, use diaphoresis; if sinking, use purgation. (Detailed discussion see Labor Relapse section.)

Shang Han with floating-slippery pulse indicates Exterior Heat and Interior Cold. Treat primarily with Bai Hu Tang [White Tiger Decoction]. (Previous chapter stated: "Heat knotted inside with exterior-interior full heat is treated with Bai Hu Tang." Also: "If exterior is unresolved, do not give Bai Hu Tang." Here it says "floating-slippery pulse, exterior heat, interior cold," implying a textual error regarding "exterior-interior." Another Yang Ming case states: "Floating-slow pulse, exterior heat interior cold, treated with Si Ni Tang." Another Shao Yin case states: "Interior cold exterior heat, treated with Tong Mai Si Ni Tang." This clearly shows the error. Also, Yang Ming chapter says: "Slippery-fast pulse, treat with Xiao Cheng Qi Tang." Using Cheng Qi Tang implies Interior Heat. Jue Yin chapter says: "Slippery pulse with cold extremities indicates Interior Heat, treated with Bai Hu Tang." This proves slippery pulse indicates Interior Heat. Moreover, Zhi Mu [Anemarrhena Rhizome] and Shi Gao [Gypsum Fibrosum] are both very cold; how can water be added to water? Cheng's interpretation following the text is incorrect.)

**Bai Hu Tang Formula**
Zhi Mu (6 liang) Shi Gao (1 jin) Gan Cao (2 liang) Nu Mi [Glutinous Rice] (6 he). These four ingredients, boil in 10 dou of water until rice is cooked and decoction is ready. Strain, take 1 sheng warm, three times daily.

Cheng Wuji commentary: Bai Hu [White Tiger] is the Metal Spirit of the West, corresponding to Autumn and belonging to the Lung. Heat rampant inside is treated with cold-purgation; heat rampant outside is treated with cooling-release. If there is heat inside and outside with neither leakage nor emission, this decoction is required to resolve summer-heat. Summer-heat stops with Autumn air, hence "Chu Shu" [End of Heat]. Named Bai Hu because it stops heat. *Nei Jing* states: "Heat rampant and victorious is assisted by bitter-sweet." Also: "Heat rampant inside is released by bitterness." To thoroughly release exterior heat, bitterness is primary. Thus, Zhi Mu (bitter-cold) is the Sovereign herb. Heat injures Qi; cold overcomes heat; sweetness moderates. Since heat defeats Qi, sweet-cold assistance is needed. Thus, Shi Gao (sweet-cold) is the Minister herb. Spleen dislikes dampness; urgently eat sweet to moderate. Residual internal heat consumes fluids; sweet-neutral substances are needed to ease the middle. Thus, Gan Cao and Nu Mi are the Envoy herbs. For Tai Yang Zhong Shu [Sunstroke], this decoction removes heat instantly; heat vanishes upon seeing the White Tiger. Do not use Bai Hu Tang after Start of Autumn, as it is a major cold agent; autumn use causes hiccups, deficiency, and emaciation.

Li Dongyuan commentary: The front of the body is the meridian of the Stomach; the chest is the chamber of the Stomach and Lung. Pathogens in Yang Ming cause Fire to constrain the Lung, so pungent-cold herbs clear the Lung, hence named Bai Hu Tang.

Zhang Yuansu commentary: Exterior syndrome of Shang Han with febrile sensation, aversion to heat, and thirst is similar to miscellaneous diseases. But with headache, body heat, eye pain, nasal dryness, and insomnia, Bai Hu Tang treats Yang Ming Meridian disease. Zheng Yang Yang Ming Qi disease presents with large pulse, initially formless. Miscellaneous disease interior syndrome with febrile sensation, aversion to heat, and thirst, but with red eyes, indicates disease in the Zang organs. Hand-Taiyin Qi deficiency cannot control Yang Qi; treat with Gou Qi [Goji Berry], Sheng Di Huang [Rehmannia Root], and Shu Di Huang [Prepared Rehmannia Root]. Large pulse with vomiting blood indicates prior formation of mass. Qi disease in the interior mistakenly using blood-invigorating herbs lacks Shang Han rationale, aiming instead to calm blood and nourish Yin. Blood disease in the interior mistakenly using Qi-moving herbs like Bai Hu Tang is incorrect, aiming instead to drain Lung and damage Yin.

Li Dongyuan on misusing Bai Hu Tang: Formerly, Ge Junrui, Vice Director of the Western Terrace, suffered Shang Han fever in mid-February. Treated with Bai Hu Tang, his face turned black as ink, original symptoms disappeared, pulse became deep-fine, and urinary incontinence occurred. Li Dongyuan initially did not understand, but upon diagnosis said: "This was mistaken use of Bai Hu Tang before Start of Summer. Bai Hu Tang is very cold, not a meridian-moving drug; it only chills the Zang-Fu. Misuse damages healthy Qi. The original disease hides in the meridians. Or administer major hot drugs to remove Yin pathogens, but other syndromes will arise, which does not rescue the Bai Hu Tang error. Use warm drugs to raise Yang and move meridians." Questioner: "Bai Hu Tang is very cold; how can major hot drugs rescue?" Li Dongyuan: "Pathogen hides in meridians; if Yang Dao does not rise, meridians do not flow. When meridians flow, original symptoms appear." He healed exactly as predicted.

Zhang Yuansu commentary: *Huo Ren Shu* [Book of Life Preservers] says Bai Hu Tang treats Zhong Shu [Sunstroke] and is merely a post-sweating exterior-releasing drug, not a proper Shang Han drug. In summer, Yin Qi is inside, so Bai Hu Tang should especially be avoided. Yet Bai Hu Tang is recorded in Zhang Zhongjing's works with clear indications. Why call it not a proper Shang Han drug? *Shang Han Lun* states: "Those without exterior syndrome may receive Bai Hu Tang." Now saying "merely a post-sweating exterior-releasing drug," if there is no exterior syndrome, what is there to release? Also saying "Summer Yin Qi inside, avoid Bai Hu Tang," while *Ming Li Lun* [Theory of Clarification] says "Do not use after Start of Autumn." In Autumn, Yin Qi is half-present, and Bai Hu Tang is very cold. If not forbidden, hiccups, inability to eat, or deficiency will occur. Shang Han law dictates treating according to syndrome, not season. If in winter/autumn one has Shang Han, no exterior syndrome, but great vexation/thirst, Bai Hu Tang is indicated. If bound by season, how to proceed? If Bai Hu Tang is very cold, why is Cheng Qi Tang used in winter? If summer avoids it and autumn forbids it, when is it suitable? Although Classics say "First consider annual Qi, do not harm Heavenly Harmony," this is general rule. If treacherous pathogens vary, Yin-Yang/Cold-Heat should follow syndrome over season.

Shang Han with floating pulse, fever, no sweat, and unresolved exterior cannot receive Bai Hu Tang. If great thirst for water and no exterior syndrome exist, Bai Hu Tang Jia Ren Shen Tang [White Tiger Decoction plus Ginseng] is primary. (Cheng Wuji commentary: Floating pulse, fever, no sweat, unresolved exterior, no thirst suggests Ma Huang Tang; thirst suggests Wu Ling San [Poria Decoction], not Bai Hu Tang. Great thirst for water without exterior syndrome allows Bai Hu Tang Jia Ren Shen Tang to scatter interior heat. Clinicians must distinguish carefully. Zhang Yuansu commentary: Classics say "May give certain decoction" or "Do not give," which is setting rules to defend against disease. "Suitable for certain decoction" is clinical judgment. "Certain decoction governs" is syndrome-specific treatment. These three are method categories, containing profound principles not fully expounded in one statement.)

Floating-slow pulse, exterior heat, interior cold, diarrhea with undigested food: Si Ni Tang [Four Counterflow Decoction]. (Discussions see Diarrhea section.) Diarrhea, cold extremities, sweating, unresolving heat: Si Ni Tang.

Shao Yin disease with diarrhea of undigested food, cold extremities, interior cold exterior heat: Tong Mai Si Ni Tang [Pulse-Recovering Four Counterflow Decoction]. (Formula discussions see Diarrhea section.) Body heat, cold extremities, deficient pulse, occurring in summer: Zhong Shu [Sunstroke]. (Discussions see Sunstroke section.) Shang Han with unresolved exterior, dry retching, fever, cough, diarrhea: Xiao Qing Long Tang minus Ma Huang plus Yuan Hua [Genkwa Flower]. (Discussions see Cough section.) Tai Yang and Yang Ming combined disease with inevitable diarrhea, headache, back pain, body heat, nasal dryness, large-long-floating pulse: Ge Gen Tang [Kudzu Decoction]. (Discussions see Combined Disease section.) Fever, diarrhea, micro-slow pulse, cold extremities: Tong Mai Si Ni Tang. Tai Yang and Shao Yang combined disease with spontaneous diarrhea, cold head, chest fullness, alternating chills/fever, large-wiry-floating pulse: Huang Qin Tang [Scutellaria Decoction]. (Discussions see Combined Disease section.) Diarrhea of undigested food, deep-slow pulse, red face, slight heat, cold extremities:必郁冒汗出自解 (Must experience vertigo/sweating to self-resolve). Fever, diarrhea, cold extremities, restlessness unable to lie down: Death. Fever with diarrhea and unceasing sweating: Death. (Both discussions see Diarrhea section.)

Fever, vomiting/diarrhea, epigastric fullness-hardness: Da Chai Hu Tang [Major Bupleurum Decoction]. Thirst: Wu Ling San [Poria Decoction]. No thirst: Li Zhong Tang [Regulate the Middle Decoction]. (Discussions see Fullness and Vomiting/Diarrhea sections.)

Fever, menstruation just started or stopped: Xiao Chai Hu Tang [Minor Bupleurum Decoction], puncture Qi Men [Gate of Life] acupoint. (Discussions see Delirium/Malaria-like symptoms section.) Fever, rapid pulse, excessive digestion, constipation: Blood stasis. Use Di Dang Tang [Resolutely Attack Decoction]. (Discussions see Blood Accumulation section.)

Dai Yuanli commentary: All Yang meridians show fever as seen in the first three Yang meridians. Yin does not show fever, except Shao Yin. Shao Yin fever has two patterns: Initial onset with Shao Yin signs, fever, aversion to cold, no headache: Ma Huang Xi Xin Fu Zi Tang [Ephedra, Asarum, and Prepared Aconite Root Decoction]. If diarrhea with undigested food, body heat, restlessness, interior cold exterior heat, Zhongjing calls this Fan Fa Re [Counterfeit fever], caused by Yin excess blocking Yang. Use Si Ni Tang [Four Counterflow Decoction] or Fu Zi Li Zhong Tang [Aconite Regulate the Middle Decoction]. Generally, Yang Qi transmitting to Yin meridian causing diarrhea is Hot Diarrhea; Yang sinking inside means no external heat. Yin Qi entering Yin meridian causing diarrhea is Interior Cold spontaneous diarrhea. Cold dominates inside, so Yang guest resides outside, causing external heat. Know that Yin syndrome fever is different. Fever originating from Yang必有 headache; fever originating from Yin no headache. This is a verification. After sweating, only aversion to cold indicates deficiency (Exterior deficiency); only aversion to heat indicates excess (Interior excess). Only aversion to cold results from excessive sweating ("Yang微弱 causes aversion to cold"), use Shao Yao Gan Cao Fu Zi Tang [Peony, Licorice, and Aconite Root Decoction]. Only fever indicates exterior resolved but interior not cleared ("Yin微弱 causes fever"), use Da Chai Hu Tang or Xiao Cheng Qi Tang [Minor Order the Qi Decoction]. After sweating/purgation, if Yin/Yang do not enter each other, Water/Fire do not harmonize, leaving residual heat, do not use cold drugs. Both interior/exterior are unsettled, so use Xiao Jian Zhong Tang [Minor Construct the Middle Decoction]. If patient is already deficient, deficiency generates heat; use Xiao Jian Zhong Tang plus Dang Gui [Angelica Sinensis] 1 qian, or Si Jun Zi Tang [Four Gentlemen Decoction] plus Huang Qi [Astragalus Root] 0.5 qian, or Shi Quan Da Bu Tang [Complete Great Tonifying Decoction] to harmonize Ying/Wei. Deficient types use Si Zhu Tang [Four Pillars Decoction] or Zhen Wu Tang [True Warrior Decoction]. Determine if pathogenic heat remains unresolved; although sweating/purgation occurred, do not fear deficiency but nourish illness with Zhu Ye Shi Gao Tang [Bamboo Leaf and Gypsum Decoction].

Song-Yuan Experts' Treatment Examples for Exterior Syndrome Fever

Jiegu commentary: With sweat, do not use Ma Huang; without sweat, do not use Gui Zhi. However, Spring/Summer pores are open; even with sweat, do not use Gui Zhi; use Huang Qi Tang [Astragalus Decoction] to harmonize. Autumn/Winter pores are closed; even without sweat, do not use Ma Huang; use Chuan Xiong Tang [Ligusticum Decoction] to harmonize. Spring/Summer with sweat, weak-micro pulse, aversion to wind/cold (Tai Yang pulse in Autumn/Winter): Use Huang Qi Tang. Without sweat, also use Chuan Xiong Tang. Autumn/Winter with sweat, strong-floating pulse, fever/aversion to heat (Yang Ming pulse in Spring/Summer): Use Huang Qi Tang. Without sweat, also use Chuan Xiong Tang. Generally, with sweat use Huang Qi Tang; without sweat use Chuan Xiong Tang.

**Huang Qi Tang**: Stops sweat.
Bai Zhu [Atractylodes Macrocephala Rhizome], Huang Qi, Fang Feng [Saposhnikovia Root] (equal parts). Crush, take 5-7 qian to 1 liang, decoct in water, drink warm. If profuse sweat/severe aversion to wind, add Gui Zhi.

**Chuan Xiong Tang**: Releases sweat.
Chuan Xiong [Ligusticum Chuanxiong Rhizome], Cang Zhu [Atractylodes Lancea Rhizome], Qiang Huo [Notopterygium Rhizome] (equal parts). Crush, take 5-7 qian to 1 liang, decoct in water, drink hot. If no sweat/severe aversion to wind, add Ma Huang 1-2 qian.

Haizang commentary Shen Shu Tang: Treats internal injury from cold drinks, external Cold pathogen, no sweat.
Cang Zhu (processed), Fang Feng (2 liang each), Gan Cao (1 liang, roasted). Crush, decoct with Cong Bai [Green Onion White] and Sheng Jiang [Fresh Ginger]. If Tai Yang syndrome fever/aversion to cold, floating-tight pulse, add Qiang Huo 2 qian. If floating-tight pulse with wiry-rapid quality indicating Shao Yang involvement, add Chai Hu [Bupleurum Root] 2 qian. If floating-tight pulse with surging quality indicating Yang Ming involvement, add Huang Qin [Scutellaria Root] 2 qian. For women, add Dang Gui, or Mu Xiang [Aucklandia Root], or Gao Ben [Ligusticum Wallichii Rhizome] 2 qian each. For breast abscess, mix with Liu Yi San [Six-to-One Powder] 3-5 qian, miraculous. Six Qi Additions/Subtractions for Shen Shu Tang:
Tai Yang Han Shui Si Tian [Solar Cold-Water Ruling Heaven]: Add Qiang Huo, Gui Zhi. Other years non-seasonal cold changes also add. Winter also add.
Yang Ming Zao Jin Si Tian [Solar Dry-Metal Ruling Heaven]: Add Bai Zhi [Angelica Dahurica Root], Sheng Ma [Cimicifuga Rhizome]. Other years non-seasonal cool-damp changes also add. Autumn also add.
Shao Yang Xiang Huo Si Tian [Solar Minister-Fire Ruling Heaven]: Add Huang Qin, Di Huang [Rehmannia Root]. Other years non-seasonal rainy-damp changes also add. Summer also add.
Tai Yin Shi Tu Si Tian [Solar Damp-Earth Ruling Heaven]: Add Bai Zhu, Gao Ben. Other years non-seasonal hot-damp changes also add. Late Summer/Early Autumn also add.
Shao Yin Jun Huo Si Tian [Solar Sovereign-Fire Ruling Heaven]: Add Xi Xin [Asarum], Du Huo [Angelica Pubescens Root]. Other years non-seasonal heat changes also add. Late Summer/Early Summer also add.
Jue Yin Feng Mu Si Tian [Solar Wind-Wood Ruling Heaven]: Add Chuan Xiong, Fang Feng. Other years non-seasonal mild-warm changes also add. Summer also add.

These Shen Shu Tang Six Qi additions/subtractions are not only for Si Tian Qi [Ruling Heaven Qi]. Regarding Annual Principal Qi and Month/Day/Hour correspondences, all should be adjusted according to the above examples. Haizang's theory aligns with Dai Ren's saying: "If disease does not match current year's Qi, look to which year's Qi matches, then seek treatment here." This wonderful method reveals connections in *Zhi Zhen Yao Da Lun* [Essential Requirements of the Most Truthful], truly uncovering predecessors' insights. Haizang's "Add certain herb for certain Si Tian Qi" treats Constant Qi. "Adjust according to appearances" treats Variable Qi. Dai Ren's "Match with any year's Qi" also treats Variable Qi. Expanding these two masters' methods clarifies *Nei Jing*运气 [Yunqi/Five Movements and Six Qi] principles. Yunqi has Constant Qi and Variable Qi. Constant Qi has fixed records (e.g., Year X ruled by Cold is cold; Year Y ruled by Heat is heat). Variable Qi has no fixed record (e.g., Year X ruled by Cold turns hot; Year Y ruled by Heat turns cold). Wang's commentary interpreted Variable Qi (no fixed record) as Constant Qi (fixed record), leading students to predict Yunqi by year, with few accurate predictions, causing disbelief and obscuring the doctrine. Two masters, born thousands of miles apart, revived and continued this, akin to Cheng-Zhu continuing Confucius-Mencius' lineage. I respectfully clarify the meaning of Variable/Constant Qi after Haizang's annual additions for colleagues to study.

**Bai Zhu Tang**: Treats internal injury from cold food, external Wind-Cold with sweat.
Bai Zhu (3 liang), Fang Feng (2 liang), Gan Cao (1 liang, roasted). Crush, take 5 qian, 1 cup water, 3 slices ginger, boil to 70%, drink warm. Once or twice daily. Wait 2-3 days for gradual sweat reduction as resolution.

**Another Bai Zhu Tang**: Treats Shang Han, releases Three Yang above, calms Tai Yin below.
Bai Zhu (use Cang Zhu if sweating), Fang Feng (2 liang each). Take 5 qian, decoct in water to 70%, drink warm. Adjust with following formulas:
If fever with drinking urge, add Huang Qin Gan Cao [Scutellaria-Licorice]; headache/aversion to wind, add Qiang Huo San 3 qian (Qiang Huo 1.5 liang, Chuan Xiong 7 qian, Xi Xin 2.5 qian, remove roots).
If body heat/eye pain, add Shi Gao Tang 4 qian (Shi Gao 2 liang, Zhi Mu 0.5 liang, Bai Zhi 7 qian).
Abdominal pain, add Shao Yao Tang 3 qian (Shao Yao 2 liang, Gui Zhi 0.5 liang).
Alternating chills/fever with vomiting, add Chai Hu San 3 qian (Chai Hu 1 liang, Ban Xia [Pinellia Tuber] 0.5 liang).
Epigastric fullness, add Zhi Shi [Immature Bitter Orange] 1 qian.
If interior syndrome exists, add Da Huang 1 qian, then 2 qian, then 3 qian. Stop when pathogen is gone.

Jiegu said: With sweat, do not use Ma Huang; without sweat, do not use Gui Zhi. If not cured, variations are countless. Thus, this method prevents violating Three Yang taboos, a divine formula for releasing exterior.

**Jiu Wei Qiang Huo Tang** [Nine-Ingredient Notopterygium Decoction]: (Tao Shangwen commentary: Regardless of season, if headache, bone/joint pain, fever, aversion to cold, no sweat, floating-tight pulse exist, use this to replace Ma Huang safely. If headache/fever/aversion to wind/spontaneous sweat/floating-slow pulse exist, use Jia Jian Chong He Tang [Modified Harmonizing Decoction], which is Qiang Huo Tang minus Cang Zhu/Xi Xin plus Bai Zhu/Huang Qi.)