一人患疯狂日久语言狂妄不肯服药予思顽痰郁结药不能入何以去非大吐其痰不得保全以
桐油和面纳入砂糖做成饼子焙香与食数饼少顷吐出顽痰如胶者盈盆昏睡一日方苏大势已定后
用调养胃气之药旬日而安
寒为杀厉之气水凝气结万类深藏冬则见之善摄生者事身周密则不犯此若夫体虚之人调护
失宜为寒所袭猝中人五脏经曰阴受之则入脏其症忽然猝仆不省口噤失音肢冷强直洒洒恶寒翕
翕发热脐腹痛甚吐逆冷气浑身冷汗六脉沉迟皆是候也或有甲青舌卷卵缩者难治盖人以肾为根
本肾水也阴也其性寒惟寒则伤肾肾气一虚外邪交作所以舌卷甲青而莫收疗治之功也甚哉肾乎
其或养之不充不特冰霜之时有寒以入之虽于暑月冲风卧地寒亦自皮肤而入经络自经络而入脏
腑病亦生焉故曰人以肾为根本也其或口噤急痛厥逆昏迷谓之中寒治宜理中四逆温之头痛恶寒
拘急腹中微痛谓之感寒治宜五积正气散之又有如 痛唇青肢冷而危急者可速灸脐下丹田穴以
肢暖为度噫治斯候者酌其轻重而随变以应之斯可矣
戴云中寒为身受肃杀之气或口伤生冷之物因胃大虚肤腠空疏猝中而即病也其症手足逆冷
身倦息微心腹疼痛六脉沉细或虽热亦不渴倦于言动者是也宜急温之迟则不救矣此与伤寒热病
若似而实不同如水火然不可得而同治误则杀人
寒之伤人有感有中感者微而中者甚中者中也寒入五脏令人脐腹绞痛四肢逆冷六脉沉迟身
如被杖吐利冷汗此中寒之阴症也甲青舌卷卵缩者难治有如头疼腹痛洒洒恶寒翕翕发热吐逆冷
汗此感寒症也
有一个患疯狂病很久的人，言语狂妄，不肯服药。我思考顽固的痰浊郁结，药物无法进入体内，怎样才能去除呢？除非通过剧烈呕吐排出痰液，否则无法保全生命。于是用桐油调和面粉，加入砂糖做成饼子，焙香后给患者吃下几块。不久后吐出像胶一样粘稠的顽痰，装满一盆，随后昏睡一天才苏醒，大势已定。之后使用调养胃气的药物，十天左右便安稳了。
寒邪是肃杀厉烈的之气，使水凝结、气结聚，万物深藏。冬季时容易见到这种寒气。善于养生的人身体周密防护，就不会受此侵害。至于体质虚弱的人，调护失宜，被寒邪侵袭，突然伤害人体五脏。《内经》说：“阴邪受之则入脏。”其症状是突然昏倒不省人事，口噤不能开，失音，四肢冰冷僵硬，瑟瑟恶寒，翕翕发热，脐腹部疼痛剧烈，呕吐逆气，浑身冷汗，六脉沉迟，这些都是候证。如果有指甲青紫、舌卷缩、睾丸上缩的情况，属于难治之症。大概因为人以肾为根本，肾属水，属阴，其性寒，只有寒邪才能伤肾。肾气一旦虚弱，外邪就会交相侵犯，所以出现舌卷、指甲青紫而难以收回的症状，治疗起来非常困难。如果平时滋养不足，不仅在冰霜寒冷的季节有寒气侵入，即使在暑热月份，迎风卧地，寒气也会从皮肤进入经络，再由经络深入脏腑，疾病由此产生。所以说人以肾为根本。如果出现口噤、急痛、厥逆昏迷，称为中寒，治疗应当用理中汤、四逆汤温补。如果头痛、恶寒、拘急、腹中微痛，称为感寒，治疗应当用五积散、正气散解表。又有如唇青、肢冷且危急的情况，可以迅速艾灸脐下的丹田穴，以肢体温暖为度。唉，治疗这类候证，要斟酌病情的轻重，随机应变，才可以。
戴云认为中寒是由于身体感受肃杀之气，或者口中损伤生冷之物，导致胃大虚，肤腠空疏，突然中邪而立即发病。其症状是手足逆冷，身体疲倦，气息微弱，心腹疼痛，六脉沉细；或者虽然有热象也不口渴，倦怠于言语动作。这种情况应当紧急温补，迟缓则无法挽救。这与伤寒热病看似相似实则不同，就像水和火一样，不可混同治疗，误治则会杀人。
寒邪伤人，有轻微的感受（感）和严重的中击（中）。感受者轻，中击者重。中击是指寒邪直接侵入五脏，令人脐腹绞痛，四肢逆冷，六脉沉迟，身体像被棍棒打过一样，呕吐腹泻，出冷汗，这是中寒的阴症。指甲青紫、舌卷缩、睾丸上缩的难治。如有头疼、腹痛、瑟瑟恶寒、翕翕发热、呕吐逆气、出冷汗的，则是感寒症。
A patient suffered from mania (madness) for a long time, speaking arrogantly and refusing to take medicine. I pondered that stubborn phlegm was knotted and obstructed, so medicines could not enter the body. How could it be removed? Unless the phlegm was expelled through severe vomiting, life could not be preserved. Therefore, I mixed tung oil with flour, added brown sugar to make cakes, baked them until fragrant, and fed them to the patient. After eating several cakes, the patient vomited a basin full of sticky, gum-like stubborn phlegm shortly thereafter, fell into a coma for one day, and then revived. The critical condition was stabilized. Subsequently, medicines to nourish and regulate Stomach Qi were used, and within ten days, the patient recovered.
Cold is a killing and fierce Qi that causes water to congeal and Qi to knot, making all things hide deeply. It is prevalent in winter. Those who are skilled in health preservation protect their bodies meticulously and thus avoid this pathogen. However, for individuals with weak constitutions, improper care leads to invasion by Cold, which suddenly attacks the Five Zang organs. The *Neijing* states: "When Yin pathogens are received, they enter the Zang." The symptoms include sudden collapse and loss of consciousness, locked jaw (mouth closure), aphonia, cold and rigid limbs, shivering aversion to cold, slight fever, severe pain around the navel and abdomen, vomiting and regurgitation of cold Qi, profuse cold sweat, and deep, slow pulses in all six positions. These are all signs of this condition. If there is cyanosis of the fingernails, retraction of the tongue, or retraction of the testes, the prognosis is poor. This is because the Kidney is the root of the human body; the Kidney belongs to Water and Yin, and its nature is Cold. Only Cold can injure the Kidney. Once Kidney Qi is deficient, external pathogens attack mutually, leading to tongue retraction and nail cyanosis that cannot be easily corrected, making treatment extremely difficult. If nourishment is insufficient, not only does Cold invade during frosty seasons, but even in summer months, lying on the ground facing the wind allows Cold to enter from the skin into the meridians, and from the meridians into the Zang-Fu organs, causing disease. Thus, it is said that the Kidney is the root of the human body. If symptoms such as locked jaw, acute pain, syncope, and coma occur, it is called "Zhong Han" (Mid-Cold). Treatment should employ warming methods using Lizhong Tang (Regulate the Middle Decoction) and Sini Tang (Frigid Extremities Decoction). If headache, aversion to cold, stiffness, and mild abdominal pain occur, it is called "Gan Han" (Sensation of Cold). Treatment should employ dispersing methods using Wuji San (Five Accumulations Powder) and Zhengqi San (Righteous Qi Powder). In cases where lips are blue, limbs are cold, and the condition is critical, moxibustion can be rapidly applied to the Dantian acupoint below the navel until the limbs warm up. Alas, treating such conditions requires assessing the severity and adapting accordingly.
Dai Yun stated that Zhong Han (Mid-Cold) occurs when the body is exposed to killing atmospheric influences or consumes raw/cold foods, causing severe deficiency of the Stomach and sparse pores, leading to immediate illness upon sudden invasion. Symptoms include cold extremities, fatigue, weak respiration, heart and abdominal pain, and deep, fine pulses. Even if there is heat, there is no thirst, and the patient is reluctant to speak or move. Urgent warming is required; delay renders it incurable. This differs fundamentally from Shanghan (Cold Damage) and febrile diseases, like the difference between water and fire; they cannot be treated identically, and misdiagnosis can be fatal.
Cold injuring the human body involves both mild sensation (Gan) and severe mid-strike (Zhong). Sensation is mild, while mid-strike is severe. Mid-strike refers to Cold entering the Five Zang organs, causing severe colic, cold extremities, deep and slow pulses, a body feeling as if beaten by a club, vomiting, diarrhea, and cold sweat. This is the Yin syndrome of Zhong Han. Cases with cyanotic nails, retracted tongue, and retracted testes are difficult to treat. Symptoms such as headache, abdominal pain, shivering aversion to cold, slight fever, vomiting, and cold sweat constitute Gan Han (Sensation of Cold).