霍乱者，何也？原胃气虚弱，内伤饮食，外感寒邪。此症多行于长夏秋初，湿热交蒸之际。日受生冷之积，夜复感
于寒邪，阴不上升，阳不下降，阴阳否塞，而成斯症。先心痛则先吐，先腹痛则先泻，心腹齐痛，吐泻并作，甚则转筋，
有声有物而吐利者，此乃其症也，名曰霍乱。又有心腹齐痛，有声无物，吐又不吐，泻又不泻，烦躁闷乱，甚则转筋入
腹，须臾不救，名为干霍乱，俗云搅肠痧者是也。脉洪大者易治；脉微手足厥冷者难治。若遍体转筋，舌卷肾缩者死。
仓卒之际，用冷水一半，滚汤一半，加盐少许，名曰阴阳汤，引其必吐宿食殆尽，为妙。重甚者，用艾脐下灸七壮。切
不可用寒凉之药。治法；宜引清气上升，浊气下降，散寒消食，分利阴阳。不可便吃米饮汤，热汤投之即死。待平静半
日后，方可与冷稀粥汤方妥。冬月霍乱，宜用五积散；夏月霍乱，藿苓汤主之。凡转筋不止，男子手挽其阴，女子手挽
两乳，甚妙法也。
藿苓汤 （即藿香正气散合五苓散） 治藿乱心腹卒痛，上吐下泻，增寒壮热。
藿香 紫苏 大腹皮 陈皮 桔梗 甘草 茯苓 半夏曲 浓朴 白芷 白术 猪苓 泽泻（各等分） 官桂（少）
生姜三片，枣一枚，水煎。
二香散 治夏月内伤生冷，外感风寒，霍乱转筋，浑身壮热。
苍术 浓朴 陈皮 甘草 紫苏 藿香 茯苓 半夏 大腹皮 白芷 香薷 扁豆 黄连 桔梗 麻黄（各等分）
生姜三片，水煎热服。（即藿香正气散合香薷饮）
加味理中汤 治霍乱吐泻，肚腹疼痛，手足厥冷，脉来沉细。
白术（炒） 茯苓（各一钱五分） 干姜 甘草（各一钱）
生姜三片。水煎。
附子理中汤（本方加）附子 治手足厥冷，脉沉细。
治中汤（本方加）青皮、陈皮 治心腹膨胀。
五苓苏木汤 治霍乱吐泻，外感寒邪。
白术 茯苓 朱苓 泽泻（各一钱） 官桂（三分） 紫苏 木瓜（各五分）
生姜一片，水煎，临服入少许。
不换金正气散 治霍乱吐泻，下痢赤白，及四时疫症，山岚瘴气，寒热往来，不伏水土并效。
茅术 浓朴 陈皮 甘草 藿香 半夏（制等分）
生姜三片，水煎。
木瓜汤 治霍乱转筋，上吐下泻。
木瓜（二钱） 茴香 吴朱萸（各一钱） 甘草（六分）
生姜五片，水煎。儿小者减半。
立应散（胃家有热难停食，胃冷无绿纱水浆，二症皆令儿呕吐，又家圣药是生姜。此方主之。）
生姜（一两） 盐（二两）
同炒变色。三岁儿五分，童便一杯，煎服。大人倍用。
灸法 霍乱已死，心腹有暖气者，纳盐脐中，灸七壮。
Huoluan (Acute Gastroenteritis/Vomiting and Diarrhea Syndrome), what is it? Its etiology involves weak Stomach Qi, internal injury from diet, and external contraction of Cold Pathogen. This syndrome often occurs during late summer and early autumn, when dampness and heat are steaming together. During the day, one accumulates cold and raw food; at night, one contracts Cold Pathogen again. Yin fails to ascend, Yang fails to descend, causing obstruction of Yin and Yang, resulting in this syndrome. If heart pain precedes, vomiting occurs first; if abdominal pain precedes, diarrhea occurs first. Simultaneous pain in the heart and abdomen with concurrent vomiting and diarrhea, and in severe cases, muscle cramps (Zhuanjin), accompanied by sounds and expulsion of matter, constitutes the manifestation of this syndrome, named Huoluan. Another condition presents as simultaneous pain in the heart and abdomen, with sounds but no matter expelled, inability to vomit or defecate, restlessness and confusion, and in severe cases, cramps extending into the abdomen, leading to death within moments. This is called Dry Huoluan (Gan Huoluan), commonly known as "Intestine-Twisting Sha." A surging pulse indicates easy treatment; a faint pulse with cold extremities indicates difficult treatment. If whole-body cramps occur, along with tongue retraction and kidney shrinkage (indicating severe depletion), it is a fatal prognosis. In emergencies, mix half cold water and half boiling water, add a little salt, named "Yin-Yang Decoction," to induce vomiting and expel retained food completely, which is optimal. For severe cases, moxa on the umbilicus for seven moxibustion cones. Cold-natured medicines must strictly be avoided. The treatment principle should guide clear Qi to ascend and turbid Qi to descend, dispel Cold and digest food, and differentiate Yin and Yang. Do not immediately consume rice soup or hot liquids, as doing so may cause death. Wait until the condition stabilizes for half a day before giving cold thin porridge soup. For winter Huoluan, Wuji San (Five Accumulations Powder) is suitable; for summer Huoluan, Huoling Tang is the primary formula. For persistent cramps, men should grasp their scrotum, and women should grasp both breasts; this is an excellent method.
Huoling Tang (a combination of Huoxiang Zhengqi San and Wuling San): Treats sudden heart and abdominal pain due to Huoluan, upper vomiting and lower diarrhea, worsening chills and high fever.
Ingredients: Huoxiang (Patchouli Herb), Zisu (Perilla Leaf), Dafupi (Areca Peel), Chenpi (Tangerine Peel), Jiegeng (Platycodon Root), Gancao (Licorice Root), Fuling (Poria), Banxiaqu (Pinellia Fermented Paste), Houpo (Magnolia Bark), Baizhi (Angelica Dahurica Root), Baizhu (Atractylodes Macrocephala Rhizome), Zhuling (Polyporus), Zexie (Alisma Rhizome) (all equal parts), Guanzi Gui (Cinnamon Twig) (small amount).
Decoction: Add three slices of Shengjiang (Fresh Ginger) and one date, decoct in water.
Erxiang San (Two Fragrances Powder): Treats internal injury from cold/raw food and external contraction of Wind-Cold in summer, Huoluan with cramps, and generalized high fever.
Ingredients: Cangzhu (Atractylodes Lancea Rhizome), Houpo (Magnolia Bark), Chenpi (Tangerine Peel), Gancao (Licorice Root), Zisu (Perilla Leaf), Huoxiang (Patchouli Herb), Fuling (Poria), Banxia (Pinellia Tuber), Dafupi (Areca Peel), Baizhi (Angelica Dahurica Root), Xiangru (Mosla Herb), Biandou (Lablab Bean), Huanglian (Coptis Rhizome), Jiegeng (Platycodon Root), Mahuang (Ephedra Stem) (all equal parts).
Decoction: Add three slices of Shengjiang (Fresh Ginger), decoct in water, and take hot. (This is a combination of Huoxiang Zhengqi San and Xiangru Yin).
Jiawei Lizhong Tang (Modified Lizhong Decoction): Treats Huoluan with vomiting and diarrhea, abdominal pain, cold extremities, and a deep, fine pulse.
Ingredients: Baizhu (Stir-fried) and Fuling (Poria) (each 1.5 qian), Ganjiang (Dried Ginger) and Gancao (Licorice Root) (each 1 qian).
Decoction: Add three slices of Shengjiang (Fresh Ginger), decoct in water.
Fuzi Lizhong Tang (Lizhong Decoction plus Fuzi): Treats cold extremities and a deep, fine pulse.
Addition: Fuzi (Prepared Aconite Lateral Root).
Zhizhong Tang (Middle-Regulating Decoction): Treats heart and abdominal distension.
Modification (based on Lizhong Tang): Add Qingpi (Green Tangerine Peel) and Chenpi (Tangerine Peel).
Wuling Sumu Tang (Wuling Decoction with Red Sandalwood): Treats Huoluan with vomiting and diarrhea, and external contraction of Cold Pathogen.
Ingredients: Baizhu (Atractylodes Macrocephala Rhizome), Fuling (Poria), Zhufuling (Red Poria), Zexie (Alisma Rhizome) (each 1 qian), Guanzi Gui (Cinnamon Twig) (0.3 qian), Zisu (Perilla Leaf), Mugua (Chaenomeles Fruit) (each 0.5 fen).
Decoction: Add one slice of Shengjiang (Fresh Ginger), decoct in water, add a small amount just before administration.
Buhuanjin Zhengqi San (Unchanging Metal Regulating Qi Powder): Treats Huoluan with vomiting and diarrhea, dysentery with red and white discharge, seasonal epidemics, mountain miasma, alternating chills and fever, and maladaptation to local environment.
Ingredients: Maozhu (Atractylodes Lancea Rhizome), Houpo (Magnolia Bark), Chenpi (Tangerine Peel), Gancao (Licorice Root), Huoxiang (Patchouli Herb), Banxia (Pinellia Tuber, processed) (equal parts).
Decoction: Add three slices of Shengjiang (Fresh Ginger), decoct in water.
Mugua Tang (Chaenomeles Decoction): Treats Huoluan with cramps, upper vomiting and lower diarrhea.
Ingredients: Mugua (Chaenomeles Fruit) (2 qian), Huixiang (Fennel Fruit), Wuzhuyu (Evodia Fruit) (each 1 qian), Gancao (Licorice Root) (0.6 fen).
Decoction: Add five slices of Shengjiang (Fresh Ginger), decoct in water. Reduce dosage for children.
Liying San (Immediate Response Powder): Indicated for infants vomiting due to stomach heat preventing food retention or stomach cold lacking green gauze water/soup. Fresh ginger is a family holy medicine; this formula treats these conditions.
Ingredients: Shengjiang (Fresh Ginger) (1 liang), Yan (Salt) (2 liang).
Preparation: Stir-fry together until color changes. For a three-year-old child, administer 0.5 fen with one cup of Tongbian (Child's Urine), decoct and drink. Adults double the dose.
Moxibustion Method: For patients appearing dead from Huoluan but retaining warmth in the heart and abdomen, fill the umbilicus with salt and apply seven moxibustion cones.