肺伤寒一证，方书多不载，误人甚多，与少阴证同，但不出汗而愈，每发于正二腊月间，亦头疼，肢节痛，
发热恶寒，咳嗽脉紧，与伤寒略同，但多咳嗽耳。不宜汗，服姜附汤，三日而愈。若素虚之人，邪气深入则昏
睡谵语，足指冷，脉浮紧，乃死证也。急灸关元三百壮，可生，不灸必死，服凉药亦死，盖非药可疗也。（肺
伤寒之证，今人多认为重伤风，非温平误事，即寒凉杀人。予于此证略有分晓，然不免因人检点，苟遇知己用
之无疑，应酬通治，不过姜甘桂辛而已。设概用姜附，往往遭人谤毁。）
治验
一人患肺伤寒，头痛发热，恶寒咳嗽，肢节疼，脉沉紧，服华盖散、黄 建中汤，略解。至五日，昏睡
谵语，四肢微厥，乃肾气虚也。灸关元百壮，服姜附汤，始汗出愈。
（此证与雍正六年自春徂夏时气大同，时俗皆禁服药，药则有误，不知非药误人，乃庸人不明此理，妄投凉药
之误耳。苟具只眼，焉得有误。）
有腰疽、背疽、脑疽、腿疽，虽因处以立名、而其根则同。方书多用苦寒败毒之药，多致剥削元气，变为
阴疽，侵肌蚀骨，溃烂而亡。不知《内经》云∶脾肾气虚，寒气客于经络，血气不通，着而成疾。若真气不甚
虚，邪气不得内陷，则成痈。盖痈者，壅也。血气壅滞，故大而高起，属阳易治。若真气虚甚，则毒邪内攻，
附贴筋骨，则成疽。盖疽者，阻也。邪气深而内烂，阻人筋骨，属阴难治。其始发也，必憎寒、壮热，急服救
生汤五钱，再服全好。甚者，即于痛处，灸三五壮。（阴疽即三五十壮，亦不为过。）如痛者属阳，易治。若
不痛，乃疽疮也，急服保元丹，以固肾气。若用凉转药，则阳变为阴，或不进饮食而死，急灸关元可生。
（近世疡医，只记一十三味方，不问邪之深浅，感之重轻，顶之起不起，色之红不红，不辨五美，不审七
恶，概用此方，更加凉解。即见纯阴冷毒，而犹云半阴半阳，总以发散解毒为良法，及至寒凉冰伏，尚云毒盛
内攻。或见神情躁扰，终认火热未清。小证变大，浅证变深，若遇大证，未有不受其害者。世谓外柯拉折腿，
医亦不尽然。人之无良，亦或有之，其余实由学问未精，识证不确，阴阳错乱，虚实混淆，变证之来，全然不
晓，有似故意害人，其实非本心也。）
治验
一人病脑疽六日，危笃不进饮食，余曰∶年高肾虚，邪气滞经也。令服救生汤，即刻减半，夜间再进一服全安。
一人忽患遍身拘急，来日阴囊连茎肿大如斗，六脉沉紧。余曰∶此阴疽也，幸未服解毒凉药，若服之，则
茎与睾丸必皆烂去而死。急令服救生汤五钱，又一服全安。
一老妇脑后作痛，憎寒拘急。余曰∶此欲发脑疽也。急服救生汤三服全愈。（余治一妇，新产深居密室，
头面遍体生札马疔，外科与清火败毒药二剂，立时消去，其家甚喜。次日胸中气闷，渴燥不已，神气异常。至
晚腹痛泄泻，身热体倦，呕恶不食。疡医云暑毒内攻，更与连栀凉剂，煎讫将进。适余至，诊其脉空散无根，
一息七八至，乃里虚毒陷也，即以异功加姜附饮之。次日，泻止，神清，食粥不呕。又一剂，而札马疔仍复发
出，亦不如前之痛苦矣。夫札马疔小疾耳，凉解一误，尚变脱陷，况大毒乎！记此以为疡医寒凉之戒，精方脉
者，亦不可不明此理。）
凡一切痈疽发背，疔疮乳痈疖毒，无非寒邪滞经，只以救生汤服之，重者减半，轻者全安，百发百中。
肺伤寒这一证候，医方书籍中大多没有记载，导致误治的人很多。它与少阴证相似，但区别在于不出汗而自愈，通常发生在农历正、二、腊月之间。症状包括头痛、肢体关节疼痛、发热恶寒、咳嗽且脉象紧，与伤寒大致相同，只是咳嗽更为明显。此证不宜使用发汗法，应服用姜附汤（干姜、附子组成的温阳方剂），三天即可痊愈。如果是素体虚弱之人，邪气深入体内，则会出现昏睡、说胡话、脚趾发冷、脉象浮紧，这是死证。此时急需在关元穴艾灸三百壮，还有生机；若不艾灸必定死亡，服用凉性药物也会死亡，因为这种情况已非药物所能治疗。（关于肺伤寒的证候，现在的人多认为是重伤风，如果不是用温平的药物延误病情，就是用寒凉药物致人死亡。我对这个证候略有了解，但也难免因人制宜地调整。如果遇到知己信任并应用，我毫不怀疑；若是用于应酬式的通用治疗，不过是生姜、甘草、桂枝、细辛这几味药罢了。如果一概使用姜附汤，往往会遭到人的诽谤和诋毁。）
治验案例：
有一人患肺伤寒，出现头痛、发热、恶寒、咳嗽、肢体关节疼痛、脉象沉紧的症状，服用了华盖散和黄耆建中汤后，症状略有缓解。到了第五天，出现昏睡、说胡话、四肢微微厥冷，这是肾气虚弱的表现。在关元穴艾灸一百壮，并服用姜附汤，随后出汗而痊愈。
（这个证候与雍正六年从春天到夏天的时行疫病大体相同，当时世俗都禁止服药，认为吃药会有误，却不知道不是药误人，而是庸医不明白这个道理，胡乱投予凉药的错误。如果有独到的见解，怎么会有误治呢？）
有腰疽、背疽、脑疽、腿疽，虽然根据发病部位命名，但其病根是相同的。医方书籍多用苦寒败毒的药物，往往导致损耗元气，转变为阴疽，侵蚀肌肉骨骼，溃烂而死。不知道《内经》说：脾肾气虚，寒气客居于经络，血气不通，停留而成疾病。如果真气不是很虚弱，邪气不能内陷，就会形成痈。所谓“痈”，就是壅滞的意思。血气壅滞，所以肿块大而高起，属于阳证，容易治疗。如果真气非常虚弱，那么毒邪就会内攻，附着于筋骨，就形成疽。所谓“疽”，就是阻塞的意思。邪气深重且内部腐烂，阻塞人的筋骨，属于阴证，难以治疗。其初发时，必然憎寒、壮热，急需服用救生汤五钱，再服用一次就能完全好转。严重的，直接在疼痛处艾灸三五壮。（对于阴疽，即使灸三五十壮也不算过分。）如果疼痛，属于阳证，容易治疗。如果不痛，则是疽疮，急需服用保元丹，以固护肾气。如果使用凉性转药，则阳气变为阴寒，或者因不进饮食而死，急需艾灸关元穴才有生机。
（近代外科医生，只记住一个十三味方的配方，不问邪气的深浅、感邪的轻重、肿顶是否隆起、颜色是否红润，不辨别五美七恶，一概使用此方，再加上凉解药物。即使是纯阴冷毒，还说是半阴半阳，总以为发散解毒是良法，等到寒凉导致冰伏，还说毒盛内攻。或者见到神情躁扰，最终认定为火热未清。小证变大证，浅证变深证，如果遇到大证，没有不受其害的。世人说外科医生像砍断腿一样害人，医生也不尽然。人的恶意或许存在，其余确实是由于学问不精，辨证不准确，阴阳错乱，虚实混淆，对变证的发生全然不知，看起来像是故意害人，其实并非本心。）
治验案例：
有一人患脑疽六天，病情危重，不进饮食。我说：年高肾虚，邪气滞留经络。让他服用救生汤，即刻症状减半，夜间再进一服，完全安康。
有一人突然患遍身拘急，第二天阴囊连同阴茎肿大如斗，六脉沉紧。我说：这是阴疽，幸好没有服用解毒凉药，如果服用了，阴茎和睾丸必定都会烂掉而死。急忙让他服用救生汤五钱，又一服后完全安康。
一位老妇人脑后作痛，憎寒拘急。我说：这是要发脑疽了。急忙服用救生汤，三服后完全痊愈。（我曾治疗一位妇女，新产后深居密室，头面遍体生札马疔，外科医生给予清火败毒药两剂，立刻消去，家属非常高兴。第二天胸中气闷，口渴燥热不已，神气异常。到了晚上腹痛泄泻，身热体倦，呕恶不食。外科医生说暑毒内攻，又给予黄连、栀子等凉剂，煎好正要服用。恰好我到达，诊察她的脉象空散无根，一息七八至，这是里虚毒陷，立即用异功散加生姜、附子给她服用。第二天，腹泻停止，神志清醒，喝粥不呕吐。又一剂后，札马疔仍然复发出来，也不像之前那样痛苦了。札马疔是小病，凉解一误，尚且变成脱陷，何况是大毒呢！记录此事作为外科医生滥用寒凉药物的警戒，精通方脉的人，也不可不明白这个道理。）
凡是所有的痈疽发背、疔疮乳痈疖毒，无非是寒邪滞留经络，只用救生汤服用，重的减半剂量，轻的全量服用，百发百中。
The syndrome of Lung Cold Damage (Fei Shang Han) is rarely recorded in medical formularies, leading to frequent misdiagnoses. It resembles Shaoyin Syndrome (a syndrome involving the Kidney and Heart channels characterized by deficiency-cold), but differs in that it resolves without sweating. It typically occurs during the first, second, or twelfth lunar months. Symptoms include headache, pain in limbs and joints, fever with aversion to cold, cough, and a tight pulse. It is slightly similar to Cold Damage (Shang Han), but with more prominent coughing. Sweating therapy is contraindicated; instead, Jiang Fu Tang (Ginger and Aconite Decoction) should be administered, resulting in recovery within three days. In patients with constitutive deficiency, if pathogenic factors penetrate deeply, symptoms such as lethargy, delirium, cold toes, and a floating-tight pulse may appear, indicating a fatal prognosis. Immediate moxibustion at Guanyuan (CV-4) for three hundred moxa cones can save life; otherwise, death is inevitable. Administering cooling medicines will also result in death, as this condition cannot be treated by herbs alone. (Regarding Lung Cold Damage, modern practitioners often consider it a severe common cold. If not treated with warm-neutral methods, the condition is delayed; if treated with cold-cooling methods, it causes death. I have some understanding of this syndrome, but treatment must be tailored to the individual. If trusted by a knowledgeable patient, I apply it without hesitation; for general practice, ingredients like Sheng Jiang (Zingiberis Rhizoma Recens), Gan Cao (Glycyrrhizae Radix et Rhizoma), Gui Zhi (Cinnamomi Ramulus), and Xi Xin (Asari Radix et Rhizoma) suffice. Using Jiang Fu Tang indiscriminately often invites criticism.)
Clinical Case 1:
A patient suffered from Lung Cold Damage, presenting with headache, fever, aversion to cold, cough, limb and joint pain, and a deep-tight pulse. After taking Hua Gai San (Hemp Seed Covering Powder) and Huang Qi Jian Zhong Tang (Astragalus Middle-Joint Building Decoction), symptoms alleviated slightly. By the fifth day, the patient experienced lethargy, delirium, and slight coldness in the four limbs, indicating Kidney Qi deficiency. Moxibustion was applied at Guanyuan (CV-4) for one hundred cones, followed by Jiang Fu Tang (Ginger and Aconite Decoction). Recovery occurred with the emergence of sweat.
(This syndrome is largely identical to the epidemic qi prevalent from spring to summer in the sixth year of Yongzheng. At that time, customs forbade medication, believing drugs would cause harm. However, the error lay not in the medicine itself, but in ignorant physicians blindly administering cooling medicines. With proper insight, such errors would be avoided.)
Yong Ju (Waist Carbuncle), Bei Ju (Back Carbuncle), Nao Ju (Brain Carbuncle), and Tui Ju (Leg Carbuncle) are named according to their location, but their root pathology is the same. Formularies often employ bitter-cold detoxifying medicines, which frequently deplete Yuan Qi (Original Qi), transforming the condition into Yin Ju (Yin Carbuncle). This leads to erosion of muscle and bone, ulceration, and death. As stated in Nei Jing (Inner Canon): Deficiency of Spleen and Kidney Qi allows Cold Pathogen to lodge in meridians, causing stagnation of Blood and Qi, resulting in disease. If True Qi is not severely deficient, pathogens do not sink inward, forming Yong (Carbuncle/Abscess). "Yong" means obstruction/stagnation. Stagnation of Blood and Qi causes large, elevated swellings; it belongs to Yang and is easy to treat. If True Qi is severely deficient, toxic pathogens attack inward, attaching to muscles and bones, forming Ju (Deep Abscess/Carbuncle). "Ju" means blockage. Deep-seated pathogens cause internal rotting and blockage of bones and muscles; it belongs to Yin and is difficult to treat. Initially, there is always aversion to cold and high fever. Immediately administer Jiu Sheng Tang (Life-Saving Decoction) five qian; a second dose ensures full recovery. For severe cases, apply moxibustion directly on the painful area for three to five cones. (For Yin Ju, even thirty to fifty cones are not excessive.) Pain indicates Yang nature, which is easy to treat. Lack of pain indicates Ju Chuang (Carbuncle/Ulcer); immediately administer Bao Yuan Dan (Protect Origin Pill) to secure Kidney Qi. Using cooling medicines transforms Yang into Yin, potentially leading to death due to anorexia; immediate moxibustion at Guanyuan (CV-4) can save life.
(Modern surgeons memorize only one thirteen-ingredient formula. Regardless of the depth of pathogen, severity of infection, elevation of the lesion, or redness of color, they fail to distinguish the Five Beauties and Seven Evils. They indiscriminately use this formula combined with cooling-resolving agents. Even in pure Yin cold-toxin cases, they claim it is half-Yin half-Yang, insisting that dispersing and detoxifying is the best method. When cold-cooling leads to ice-like stagnation, they still claim toxin heat attacks inward. When mental agitation occurs, they attribute it to unquenched fire. Minor conditions worsen, superficial conditions deepen. In major cases, harm is inevitable. People say surgeons harm like amputating legs, but this is not entirely true. While malice exists, most harm stems from insufficient learning, inaccurate differentiation, confusion of Yin/Yang and Deficiency/Excess, and ignorance of changing syndromes. It appears intentional, but is not.)
Clinical Case 2:
A patient suffered from Brain Carbuncle for six days, critically ill and unable to eat. I stated: Advanced age and Kidney deficiency cause pathogen stagnation in meridians. Prescribed Jiu Sheng Tang (Life-Saving Decoction). Symptoms halved immediately; a second dose at night ensured full recovery.
Clinical Case 3:
A patient suddenly developed generalized stiffness. The next day, the scrotum and penis swelled to the size of a dou. All six pulses were deep and tight. I stated: This is Yin Ju. Fortunately, no detoxifying cooling medicines were taken; had they been, the penis and testicles would have necrosed, leading to death. Urgently prescribed Jiu Sheng Tang (Life-Saving Decoction) five qian; one dose ensured full recovery.
Clinical Case 4:
An elderly woman suffered pain at the back of the head, with aversion to cold and stiffness. I stated: Brain Carbuncle is impending. Urgently prescribed Jiu Sheng Tang (Life-Saving Decoction); three doses resulted in complete cure. (I once treated a woman who, after childbirth, stayed in a dark room. She developed Zha Ma Ding (Horsefly Carbuncle) all over her head and body. Surgeons gave two doses of Fire-Clearing Detoxifying Medicine, which resolved it quickly, pleasing the family. The next day, she experienced chest oppression, extreme thirst, and abnormal spirit. That evening, abdominal pain, diarrhea, fever, fatigue, vomiting, and anorexia appeared. Surgeons attributed this to Summer-Toxin attacking inward and prescribed another cooling decoction with Lian Zi (Nelumbinis Semen) and Zhi Zi (Gardeniae Fructus). Just as it was about to be administered, I arrived. Her pulse was empty, scattered, and rootless, beating seven to eight times per breath, indicating Interior Deficiency with Toxin Collapse. I immediately prescribed Yi Gong San (Benefit Work Powder) modified with Sheng Jiang (Zingiberis Rhizoma Recens) and Fu Zi (Aconiti Lateralis Radix Praeparata). The next day, diarrhea stopped, consciousness cleared, and she drank congee without vomiting. After another dose, Zha Ma Ding recurred but was less painful than before. Zha Ma Ding is a minor ailment; a single error with cooling-resolving medicine led to collapse. How much worse for major toxins! I record this as a warning against the abuse of cold-cooling medicines by surgeons. Those proficient in pulse diagnosis must understand this principle.)
All types of Yong Ju (Carbuncles), Fa Bei (Back Eruptions), Ding Chuang (Ding Sores), Ru Yong (Breast Abscesses), and Ji Du (Furuncles) are caused by Cold Pathogen stagnating in meridians. Simply administer Jiu Sheng Tang (Life-Saving Decoction). For severe cases, reduce the dose by half; for mild cases, use the full dose. This method is infallible.