伤寒大吐下之后，极虚，复极汗出者，其水郁以发其汗者，因得哕。所以然者，胃中寒
冷故也。伤寒哕而腹满者，视其前后，知何部不利，利之即愈。阳明病能食，下之不解，其
人不能食，攻其热必哕，所以哕者，胃中虚冷故也。又病患本虚，伏热在胃，则胸满，胸满
则气逆，气逆不可攻其热，攻其热必哕。
伤寒太阳病，下之微喘者，外未解故也。夫发汗后，饮水多者必喘，以水停心下，肾气
乘心故喘也。以水灌之，亦令喘也。
厥者，逆也。逆者，谓手足逆冷也。此由阳气暴衰，阴气独盛，阴胜于阳，故阳脉为之
逆，不通于手足，所以逆冷也。伤寒，一二日至四五日厥者，必发热。前发热者后必厥，厥
深热亦深，厥微热亦微。厥应下之，而反发其汗者，口伤烂赤。伤寒先厥后发热，下利必自止
。而反汗出，必咽喉中强痛，其为喉痹。发热无汗，而利必自止，不止，便脓血。便脓血者
，其喉不痹。伤寒先厥者，不可下之。后发热而利者，必自止，见厥复利。伤寒病，厥五日
，热亦五日，设六日，当复厥，不厥之者，自愈。厥终不过五日，以热五日，故知愈也。发
热而厥，七日而下利者，为难治。其脉促，手足厥逆者，可灸之。下利，手足厥，无脉，灸
之不温，反微喘者死。下利，厥，烦躁不能卧者死。病六七日，其脉数，手足厥，烦躁，灸
厥阴，厥不还者死。发热，下利至甚，厥不止者死。下利后，其脉绝，手足厥，卒时脉还，
手足温者生，不还者死。
伤寒经过剧烈的呕吐或泻下治疗后，人体极度虚弱，此时若再次强行发汗，或者因水饮郁滞而错误地采用发汗法，就会导致呃逆（打嗝）。之所以出现这种情况，是因为胃中寒冷所致。如果伤寒患者出现呃逆且腹部胀满，应当观察其前阴和后阴，判断是哪一部分气机不利，通利该部位后症状即可痊愈。阳明病患者原本能进食，经过攻下治疗后病未解除，反而变得不能进食，此时若继续清攻其热邪，必然引发呃逆，原因在于胃中虚冷。另外，患者本身体质虚弱，胃中有伏热，导致胸中胀满；胸满则气机上逆，此时不可攻伐热邪，若强行攻热必致呃逆。
伤寒太阳病，经误用泻下法后出现轻微气喘，这是因为表证尚未解除的缘故。发汗之后，若饮水过多必然导致气喘，这是因为水饮停滞在心下，肾气上凌于心所致。此外，用冷水浇洗身体，也会引起气喘。
厥，即逆乱之意。所谓逆，是指手足逆冷。这是由于阳气突然衰微，阴气独盛，阴胜于阳，导致阳脉逆乱，气血不能通达于手足，因此出现逆冷。伤寒病一二日至四五日出现厥冷，随后必定发热。先前发热的，后续必然出现厥冷；厥冷程度越深，体内的热邪也越深；厥冷程度轻微，热邪也轻微。厥证本应使用下法治疗，若反而使用发汗法，会导致口腔黏膜损伤、红肿溃烂。伤寒先出现厥冷，随后发热，腹泻必然自行停止。若反而出汗，必然导致咽喉强硬疼痛，形成喉痹。若发热无汗，腹泻必然自行停止；若不停止，则大便带脓血。若大便带脓血，咽喉就不会发生喉痹。患伤寒出现厥冷的，不可使用下法。后来发热且伴有腹泻的，腹泻必然自行停止；若再次出现厥冷，腹泻会复发。伤寒病，厥冷五日，发热也五日，假设到第六天应当再次出现厥冷，若没有再次厥冷，说明疾病自愈。厥冷的时间不超过五日，因为发热也是五日，所以知道病愈了。若发热并伴随厥冷，到了第七天还出现腹泻，属于难治之症。若脉象急促，手足厥冷，可以使用灸法治疗。若腹泻、手足厥冷、无脉搏，施灸后手脚仍不温暖，反而出现轻微气喘，为死证。若腹泻、厥冷、烦躁无法躺卧，为死证。患病六七天，脉象数急，手足厥冷，烦躁不安，灸治厥阴经穴位后，厥冷若不回返，为死证。若发热，腹泻极其严重，厥冷不止，为死证。腹泻停止后，脉搏消失，手足厥冷，片刻后脉搏恢复，手足变温的，可生；若脉搏不恢复，为死证。
After severe vomiting or purgation in Cold Damage (Shanghan), the body becomes extremely deficient. If sweating is induced again, or if sweating is used to treat water retention (Shui Yu), hiccups (Yue) will result. This occurs because of cold and deficiency in the Stomach. If a patient with Cold Damage presents with hiccups and abdominal fullness, one should examine the anterior and posterior orifices to determine which part is obstructed; unblocking that part will lead to recovery. In Yangming disease, if a patient who could previously eat fails to recover after purgation and subsequently loses their appetite, attacking the heat will inevitably cause hiccups, due to deficiency and cold in the Stomach. Furthermore, if a patient is constitutionally weak with latent heat in the Stomach, chest fullness results; this leads to rebellious Qi. In such cases, attacking the heat is contraindicated, as it will cause hiccups.
In Taiyang disease of Cold Damage, mild wheezing after purgation indicates that the exterior syndrome has not yet resolved. After inducing sweat, excessive water intake often causes wheezing because water stagnates below the Heart, allowing Kidney Qi to assault the Heart. Similarly, washing the body with cold water can also induce wheezing.
Jue (Reversal) refers to rebellion. Specifically, it denotes cold extremities. This condition arises from a sudden decline of Yang Qi and an excess of Yin Qi. When Yin surpasses Yang, the Yang pulses become rebellious, and circulation fails to reach the hands and feet, resulting in coldness. In Cold Damage, if Jue occurs between the first and fourth days, fever will inevitably follow. If fever preceded the Jue, then Jue follows; the deeper the Jue, the deeper the heat; the milder the Jue, the milder the heat. Jue syndromes should typically be treated with purgation; if sweating is mistakenly induced instead, it will cause sores and redness in the mouth. If Cold Damage begins with Jue followed by fever, diarrhea will cease spontaneously. However, if sweating occurs instead, it will lead to stiffness and pain in the throat, forming a Hou Bi (Throat Bi). If there is fever without sweating, diarrhea will cease; if it does not cease, pus and blood will appear in the stool. If pus and blood appear in the stool, the throat will not suffer from Hou Bi. In Cold Damage presenting with Jue, purgation is contraindicated. If fever appears later with diarrhea, the diarrhea will cease; if Jue returns, diarrhea recurs. If a patient experiences Jue for five days and fever for five days, and on the sixth day Jue does not return, the disease will heal itself. Since Jue does not exceed five days and fever lasts five days, recovery is indicated. If fever and Jue persist into the seventh day accompanied by diarrhea, the case is difficult to treat. If the pulse is rapid and extremities are cold, moxibustion may be applied. If diarrhea, cold extremities, and absence of pulse occur, and moxibustion fails to warm the limbs, accompanied by slight panting, death ensues. If diarrhea, Jue, and restlessness preventing lying down occur, death ensues. On the sixth or seventh day, if the pulse is rapid, extremities are cold, and the patient is restless, moxibustion should be applied to the Jueyin channel; if Jue does not reverse, death ensues. If fever is accompanied by severe diarrhea and persistent Jue, death ensues. After diarrhea ceases, if the pulse vanishes and extremities are cold, but the pulse returns and extremities warm within a short time, the patient survives; if the pulse does not return, death ensues.