雷公真君曰∶阴寒宜中少阴经肾中，手足青黑者，不治之症也。盖阴毒结成于脾胃
之间，而肾中之火全然外越，如何可救。然而心尚不痛，则心中尚有星星余火，存于其中。急
用救心荡寒汤∶人参三两，良姜三钱，附子三钱，白术三两，水煎服。助心中之火不使遽绝，
则相火得君火之焰而渐归。火势既旺，寒邪失威，自然火生土，而脾胃之气转，一阳来复，大地皆阳
春，手足四肢尽变温和矣。此方妙在良姜入心，同附子斩关直入，然非参、术之多用，亦不能返
元阳于无何有之乡也，故必须多用而共成其功耳。
阴寒直中肾经，面青鼻黑，腹中痛欲死，囊缩，较前症更重矣。死亡顷刻，救之少迟，必一身尽黑
而死。急用救亡丹∶人参五钱，白术三两、附子一个，干姜三钱，肉桂五钱，水煎急灌之。吾方似较
仲景张公之用热更重，不知此症全是一团死气，现于身之上下，若不用此等猛烈大热重剂，又何以逐阴
寒而追亡魂，祛毒瓦斯而夺阳魄哉。故人参反若可少用。而附，桂不可不多用也。然而白术又何以多用
之耶？不知白术最利腰脐，腹痛欲死，非此不能通达，故多用之以驱驾桂、附，以成其祛除扫荡之
功，而秦返魄还魂之效耳。
阴寒直中肾经，心痛欲死，呕吐不纳食，下利清水，本是不治之病。盖寒邪犯心、而脾胃将绝、急
不待时，此时觅药，缓不济事，速用针刺心上一分，出紫血少许，然后用逐寒返魂汤救之。人参一两，
良姜三钱，附子五钱，茯苓五钱，
白术三两，丁香一钱。此方专入心以逐祛，返元阳于顷刻，心若定而诸邪退走，脾胃自安，不至上下之
逆，庶可重生。否则因循观望，必至身死矣。
阴寒直中肾经，两胁作痛，手足指甲尽青，囊缩，拽之而不出，蜷曲而卧，亦不治之症也。此乃阴
寒从肾以入肝，而肝气欲绝，故筋先受病将死也。虽症较前三症少轻，而能死人则一。余又将何法以生
之乎。夫肝木之绝，由于肾气之先绝，欲救肝不得不先救肾。方用救肾活肝汤∶白术三两，当归一两，
人参五钱。熟地一两，山茱萸五钱，附子一钱，肉桂二钱，水煎服。此方祛寒之中，仍用回阳之药，
然加入熟地、山茱萸，则参、术无过燥之忧，附、桂有相资之益，肝得火而温，亦得水而养，自然筋
活而青去，囊宽而缩解也。
阴寒而直中肾经，舌黑眼闭，下体尽黑，上身尽青，大便出，小便自遗，此更危急之症，虽有仙
方，恐难全活。而予必欲生之，因定一方，虽不敢曰人尽可救，亦庶几于十人中而救一二人乎。方名救
心汤。人参五两，附子一个，白术半斤，肉桂一两，菖蒲五分，良姜三钱，水煎服，此方参、术多
用者，恐少则力量不能胜任，以驾御夫桂、附之热药也，故必多加，而后可望其通达上下，以尽祛周身
之寒毒。倘得大便止而小便不遗，便有生机，再进一剂，则眼开而舌黑可去，身黑身青俱可尽解也。苟服
药后仍前大小便之不禁，不必再服药，听其身死而已矣。大约此方救此病，十人中亦可救三四人。
凡人直中阴寒，冷气犯于小腹，不从传经伤寒而自寒者，命曰直中阴经。阴经者，少阴肾经，其症必
畏寒，腹痛作呕，手足厥逆，有手足俱青，甚则筋青囊缩。若不急以温热之药
治之，有立时而死者，最可惧之症也，方用荡寒汤∶白术三两，肉桂三钱，丁香一钱，吴茱萸一钱，
水煎服。一剂而阴消阳回，不必再剂也，此方妙在独用白术至三两，则腰脐之与大利，又得肉桂以温
热其命门之火，丁香、吴茱萸止呕逆而反厥逆，则阴寒之邪何处潜藏，故一剂而回春也。
雷公真君说：阴寒之邪适宜侵入少阴经，导致肾中受邪。如果患者手足呈现青黑色，这是无法治愈的病症。这是因为阴毒凝结在脾胃之间，而肾中的阳气完全向外浮越，这种情况下如何能够救治？然而，如果心脏部位尚不疼痛，说明心中还残留着微弱的阳气（星星余火）。此时急需使用救心荡寒汤：人参三两，高良姜三钱，附子三钱，白术三两，用水煎煮后服用。此方旨在助益心中的阳气，使其不至于突然断绝，这样相火（寄居于肝肾的命门之火）就能得到君火（心阳）的引燃而逐渐回归本位。火势一旦旺盛，寒邪便失去威势，自然形成“火生土”的相生关系，脾胃之气得以转复，一阳来复，大地如同充满阳春之气，手足四肢都会变得温和。这个方子的妙处在于高良姜入心经，与附子一起斩关直入，但如果没有大量的人参、白术，也不能将元阳从虚无之境召回，所以必须多用这些药物才能共同成就功效。
若阴寒之邪直接中伤肾经，出现面色发青、鼻头发黑、腹部剧烈疼痛欲死、阴囊收缩等症状，比前面的症状更加严重。死亡就在顷刻之间，救治稍慢，必然全身变黑而死。此时急需使用救亡丹：人参五钱，白术三两，附子一枚，干姜三钱，肉桂五钱，用水煎煮后紧急灌服。我的方子看起来比张仲景公使用的热性药物更猛烈，却不知道这种病症全身上下都是一团死气，如果不使用这种猛烈的大热重剂，又怎么能驱逐阴寒、追回亡魂、祛除毒瓦斯并夺回阳魄呢？因此，人参反而可以稍微少用，而附子、肉桂则不可不多用。那么，为什么又要多用白术呢？不知道白术最利于疏通腰脐部位，腹痛欲死，非此药不能通达，所以多用白术是为了驾驭桂、附二药，以完成其祛除扫荡的功效，从而起到返魄还魂的效果。
若阴寒之邪直接中伤肾经，出现心痛欲死、呕吐不能进食、下利清水等症状，这本来是不治之病。因为寒邪侵犯心脏，而脾胃之气即将断绝，情况紧急不容等待。此时寻找药物已经来不及，应迅速针刺心上一分处，放出少许紫血，然后使用逐寒返魂汤进行救治。方用人参一两，高良姜三钱，附子五钱，茯苓五钱，白术三两，丁香一钱。此方专门入心经以驱逐寒邪，顷刻间使元阳返回。心脏安定则各种邪气退散，脾胃自然安宁，不会发生上下逆乱，或许可以重生。否则因循守旧、观望犹豫，必然导致身死。
若阴寒之邪直接中伤肾经，出现两胁疼痛、手足指甲全部发青、阴囊收缩且拉扯不出、身体蜷曲而卧等症状，这也是不治之症。这是因为阴寒从肾脏传入肝脏，导致肝气即将断绝，所以筋脉先受到病变影响而濒临死亡。虽然症状比前三者稍轻，但致人死亡的结果是一样的。我又有什么办法能救活他呢？肝木的衰竭，是由于肾气先衰竭所致，想要救肝不得不先救肾。方用救肾活肝汤：白术三两，当归一两，人参五钱，熟地黄一两，山茱萸五钱，附子一钱，肉桂二钱，用水煎煮后服用。此方在祛寒的同时，仍使用回阳的药物，但加入熟地黄、山茱萸后，使人参、白术没有过于燥热的忧虑，使附子、肉桂有相互资助的好处。肝脏得到火的温煦，也得到水的滋养，自然筋脉柔和青色消退，阴囊舒展收缩解除。
若阴寒之邪直接中伤肾经，出现舌苔发黑、眼睛闭合、下半身全部发黑、上半身全部发青、大便失禁、小便自遗等症状，这是更加危急的病症，即使有仙方，恐怕也难以完全救活。但我一定要救活他，因此定下一个方子，虽然不敢说人人都能救活，但也希望在十人中能救活一两人。方名救心汤：人参五两，附子一枚，白术半斤，肉桂一两，石菖蒲五分，高良姜三钱，用水煎煮后服用。此方中人参、白术多用的原因，是担心量少则力量不足以胜任，无法驾驭桂、附等热性药物，所以必须多加，之后才有望通达上下，尽祛周身之寒毒。倘若服药后大便停止且小便不再失禁，便有生机，再进一剂，则眼睛睁开、舌苔黑色可去，身体黑青之色均可解除。如果服药后仍然大小便不禁，不必再服药，听任其死亡罢了。大约此方治疗此病，十人中也可救活三四人。
凡是人体直接中受阴寒，冷气侵犯小腹，不是通过传经途径感受伤寒而是直接受寒的，称为直中阴经。阴经指的是少阴肾经，其症状必定畏寒、腹痛作呕、手足厥冷，有的甚至手足俱青，严重时筋脉青紫、阴囊收缩。如果不紧急使用温热药物治疗，有立即死亡的危险，这是最令人恐惧的病症。方用荡寒汤：白术三两，肉桂三钱，丁香一钱，吴茱萸一钱，用水煎煮后服用。一剂药即可使阴寒消散、阳气回复，不必再服第二剂。此方的妙处在于独用白术至三两之多，则腰脐部位大利，再加上肉桂以温热命门之火，丁香、吴茱萸止呕逆并纠正厥逆，那么阴寒之邪无处潜藏，所以一剂药就能起死回春。
Lei Gong Zhen Jun said: Yin-cold pathogenic factors tend to invade the Shaoyin meridian, affecting the Kidney. If the hands and feet turn cyanotic and black, it is an incurable condition. This is because Yin-toxin condenses between the Spleen and Stomach, while the Fire of the Kidney completely floats outward; how can such a case be saved? However, if there is no pain in the heart region, it indicates that a trace of residual Yang-Fire remains within the Heart. Urgently administer Jiuxin Danghan Tang (Rescue Heart Decoction to Dispel Cold): Ren Shen (Ginseng Radix) 3 liang, Liang Jiang (Galangal Rhizome) 3 qian, Fu Zi (Aconite Lateralis Radix Preparata) 3 qian, Bai Zhu (Atractylodis Macrocephalae Rhizoma) 3 liang. Decoct in water and take orally. This formula assists the Heart's Yang-Fire so as not to let it abruptly cease, allowing the Ministerial Fire (Xiang Huo, fire residing in the Liver and Kidneys) to gradually return to its origin under the guidance of the Sovereign Fire (Jun Huo, Heart Yang). Once the Fire energy becomes vigorous, the Cold pathogen loses its power, naturally generating Earth via the "Fire generates Earth" cycle. The Qi of the Spleen and Stomach then recovers, leading to the return of one Yang (Yi Yang Lai Fu), filling the body with the warmth of spring, causing the hands, feet, and limbs to become warm. The brilliance of this formula lies in Liang Jiang entering the Heart meridian, working together with Fu Zi to break through barriers directly. Yet, without the heavy use of Ren Shen and Bai Zhu, it would be impossible to restore Yuan Yang (Primal Yang) from non-existence. Therefore, these herbs must be used in large quantities to achieve success together.
If Yin-cold strikes the Kidney meridian directly, presenting with a cyan face, black nose, severe abdominal pain nearly causing death, and retraction of the scrotum, the condition is more severe than the previous ones. Death occurs within moments; any delay in rescue will result in the whole body turning black before death. Urgently administer Jiuwang Dan (Rescue Life Pill): Ren Shen (Ginseng Radix) 5 qian, Bai Zhu (Atractylodis Macrocephalae Rhizoma) 3 liang, Fu Zi (Aconite Lateralis Radix Preparata) one piece, Gan Jiang (Zingiberis Rhizoma) 3 qian, Rou Gui (Cinnamomi Cortex) 5 qian. Decoct in water and administer urgently by force-feeding. My prescription appears hotter than those used by Zhang Zhongjing, but one does not realize that this condition manifests as a mass of dead Qi throughout the body. Without using such fierce, heavy-dosed hot formulas, how can one drive out Yin-cold, chase back the wandering soul, dispel toxic vapors, and reclaim the Yang spirit? Thus, Ren Shen can actually be used in smaller amounts, whereas Fu Zi and Rou Gui must be used in larger quantities. But why use Bai Zhu in large amounts? It is unknown that Bai Zhu is most beneficial for the waist and umbilical region. Severe abdominal pain cannot be relieved without it. Hence, Bai Zhu is used heavily to command Gui and Fu, completing their task of sweeping away pathogens, thereby achieving the effect of returning the soul.
If Yin-cold strikes the Kidney meridian directly, presenting with heart pain nearly causing death, vomiting with inability to retain food, and diarrhea of clear water, this is originally an incurable disease. Since Cold pathogens attack the Heart and the Spleen/Stomach Qi is about to perish, urgency leaves no time for searching for medicine. One should quickly prick one fen above the heart point to release a small amount of purple blood, then use Zhuhan Fanhun Tang (Expel Cold and Return Soul Decoction) for rescue. Formula: Ren Shen (Ginseng Radix) 1 liang, Liang Jiang (Galangal Rhizome) 3 qian, Fu Zi (Aconite Lateralis Radix Preparata) 5 qian, Fu Ling (Poria) 5 qian, Bai Zhu (Atractylodis Macrocephalae Rhizoma) 3 liang, Ding Xiang (Caryophylli Flos) 1 qian. This formula specifically enters the Heart meridian to expel pathogens, restoring Yuan Yang within moments. Once the Heart stabilizes, various evils retreat, the Spleen and Stomach settle naturally, preventing upper and lower rebellions, offering a chance for rebirth. Otherwise, hesitation and delay will surely lead to death.
If Yin-cold strikes the Kidney meridian directly, presenting with pain in both hypochondriac regions, cyanosis of all fingernails and toenails, retracted scrotum that cannot be pulled out, and a curled-up sleeping posture, this is also an incurable condition. This occurs because Yin-cold moves from the Kidney to the Liver, causing Liver Qi to approach extinction, thus affecting the sinews first and leading to death. Although slightly milder than the previous three conditions, it is equally fatal. What method do I have to save him? The failure of Liver Wood stems from the prior failure of Kidney Qi. To save the Liver, one must first save the Kidney. Use Jiushen Huogan Tang (Rescue Kidney and Revive Liver Decoction): Bai Zhu (Atractylodis Macrocephalae Rhizoma) 3 liang, Dang Gui (Angelicae Sinensis Radix) 1 liang, Ren Shen (Ginseng Radix) 5 qian, Shu Di Huang (Rehmanniae Radix Preparata) 1 liang, Shan Zhu Yu (Corni Fructus) 5 qian, Fu Zi (Aconite Lateralis Radix Preparata) 1 qian, Rou Gui (Cinnamomi Cortex) 2 qian. Decoct in water and take orally. While this formula dispels cold and uses Yang-restoring herbs, the addition of Shu Di Huang and Shan Zhu Yu prevents Ren Shen and Bai Zhu from being overly drying, and aids Fu Zi and Rou Gui in mutual support. The Liver receives warmth from Fire and nourishment from Water, naturally resulting in flexible sinews, disappearance of cyanosis, and relaxation of the retracted scrotum.
If Yin-cold strikes the Kidney meridian directly, presenting with a black tongue, closed eyes, complete blackness of the lower body, complete blueness of the upper body, fecal incontinence, and urinary incontinence, this is an even more critical condition. Even with immortal prescriptions, full recovery may be difficult. However, I am determined to save them, so I have formulated a prescription. Although I dare not claim everyone can be saved, perhaps one or two out of ten might be rescued. Named Jiuxin Tang (Rescue Heart Decoction): Ren Shen (Ginseng Radix) 5 liang, Fu Zi (Aconite Lateralis Radix Preparata) one piece, Bai Zhu (Atractylodis Macrocephalae Rhizoma) half jin, Rou Gui (Cinnamomi Cortex) 1 liang, Shi Chang Pu (Acori Tatarinowii Rhizoma) 5 fen, Liang Jiang (Galangal Rhizome) 3 qian. Decoct in water and take orally. The reason for using large doses of Ren Shen and Bai Zhu here is the fear that insufficient dosage would lack the strength to control the heat of Gui and Fu. Therefore, they must be increased to ensure penetration throughout the body and complete expulsion of cold toxins. If bowel movements stop and urinary incontinence ceases, there is hope for life. Administer another dose, and the eyes will open, black tongue will disappear, and black/blue discoloration of the body will resolve. If incontinence persists after taking the medicine, do not administer further doses; accept death. Approximately, this formula can save three or four out of ten patients with this disease.
When anyone suffers direct invasion of Yin-cold, where cold qi attacks the lower abdomen, not transmitted via meridians but directly contracted, it is called Direct Invasion of Yin Meridians. The Yin Meridian refers to the Shaoyin Kidney Meridian. Symptoms necessarily include aversion to cold, abdominal pain with vomiting, and cold extremities (Jue Ni). In severe cases, hands and feet turn cyan, sinews become blue, and the scrotum retracts. If not treated urgently with warming and hot medicines, death can occur instantly. This is the most terrifying condition. Use Danghan Tang (Dispel Cold Decoction): Bai Zhu (Atractylodis Macrocephalae Rhizoma) 3 liang, Rou Gui (Cinnamomi Cortex) 3 qian, Ding Xiang (Caryophylli Flos) 1 qian, Wu Zhu Yu (Evodiae Fructus) 1 qian. Decoct in water and take orally. One dose eliminates Yin and restores Yang; a second dose is unnecessary. The brilliance of this formula lies in using Bai Zhu alone in a large dose of 3 liang, greatly benefiting the waist and umbilical region, combined with Rou Gui to warm the Fire of the Gate of Vitality (Ming Men). Ding Xiang and Wu Zhu Yu stop vomiting and reverse cold extremities. With no place for Yin-cold to hide, one dose brings about recovery.