妊娠之妇，每多恶心呕吐，胀满不食。《巢氏病源》谓之恶阻。此证惟胃气弱而兼滞者多有之。或嗜酸择
食，或肢体困倦，或烦闷胀满，皆其候也。然亦有虚实不同，所当辨而治之。
凡恶阻多由胃虚气滞，然亦有素本不虚，而忽受胎妊，则冲任上壅，气不下行，故为呕逆等证。及三月余
而呕吐渐止者，何也？盖胎元渐大，则脏气仅供胎气，故无暇上逆矣。凡治此者，宜以半夏茯苓汤、人参橘皮
汤之类，随宜调理，使之渐安，必俟及期，方得贴然也。若中脘多痰者，用二陈汤加枳壳，或用半夏茯苓汤。
若饮食停滞作胀者，宜小和中饮加减主之。若气逆作胀者，宜半夏茯苓汤加枳壳、苏梗、香附。
《良方》半夏茯苓汤（见《妇人规古方》）治妊娠脾胃虚弱，饮食不化，呕吐不止。
半夏（炮炒黄） 陈皮 砂仁（各炒一钱） 白茯苓（二钱） 甘草（炒五分）
上用姜、枣、乌梅，水煎，服一二剂，后用茯苓丸。
人参橘皮汤（即参橘散。见安胎）
二陈汤（见安胎）
小和中饮（见安胎）
若脾胃气虚者，宜五味异功散、六君子汤、人参橘皮汤之类主之。若胃虚兼寒多呕者，宜六味异功煎、温
胃饮之类主之。若肝肾阳虚作呕者，宜理阴煎主之。
五味异功散（见《古方八阵·补阵》）治脾胃虚寒，饮食少思，呕吐或久患咳嗽，面浮气逆腹满等证。
人参 白术（炒） 茯苓 炙甘草 陈皮（各一钱）
上加姜、枣，水煎服。
六君子汤（见经期腹痛）
六味异功煎（见《新方八阵·热阵》）治脾胃虚寒，呕吐泄泻而兼微滞者。
此即五味异功散加干姜也。
温胃饮（见血虚经乱）
理阴煎（见血寒经迟）
立斋曰∶半夏乃健脾化痰滞之主药也。脾胃虚弱而呕吐，或痰涎壅滞，饮食少思，胎不安，必用茯苓半夏
汤，倍加白术。以半夏、白术、茯苓、陈皮、砂仁，善能安胎气，健脾胃，予常用验矣。
Pregnant women often experience nausea, vomiting, abdominal distension, and loss of appetite. *Chao Shi Bing Yuan* (Source of Diseases by Chao Yuanfang) refers to this condition as "E Zu" (Morning Sickness / Obstruction due to Dislike). This syndrome is common in individuals with weak Stomach Qi accompanied by Qi stagnation. Symptoms may include a craving for sour foods or selective eating, limb fatigue, or mental restlessness and abdominal fullness; all are manifestations of this condition. However, there are differences between deficiency and excess patterns, which must be differentiated for appropriate treatment.
Generally, E Zu is caused by Stomach deficiency and Qi stagnation. Yet, some women who were not originally deficient may suddenly conceive, causing the Chong and Ren vessels to become obstructed upward, preventing Qi from descending, thus leading to symptoms such as vomiting and rebellious Qi. Why does vomiting gradually cease after about three months? It is because the fetal root grows larger, and the Zang-Fu Qi is solely dedicated to nourishing the fetus, leaving no surplus to rebel upward. In treating this condition, it is advisable to use formulas such as Banxia Fuling Tang (Pinellia and Poria Decoction) or Renshen Jupi Tang (Ginseng and Tangerine Peel Decoction), adjusting according to circumstances to stabilize the condition gradually. Only near the due date can one feel completely secure. If there is excessive phlegm in the Zhongwan region, Erchen Tang (Two-Cured Decoction) with Zhike (Aurantium Fructus) should be used, or Banxia Fuling Tang. If abdominal distension is caused by food stagnation, Xiaoheshang Yin (Minor Harmonizing Middle Infusion) with modifications is suitable. If abdominal distension is caused by rebellious Qi, Banxia Fuling Tang with added Zhike, Sugeng (Perilla Stem), and Xiangfu (Cyperus Rhizome) is appropriate.
Banxia Fuling Tang from *Liang Fang* (Good Prescriptions) (see *Furen Gui Ancient Formulas*) treats pregnancy complicated by Spleen-Stomach deficiency, inability to digest food, and incessant vomiting.
Banxia (Pinelliae Rhizoma, processed and fried until yellow) Chenpi (Citri Reticulatae Pericarpium) Sharen (Amomi Fructus, each fried, 1 qian) Baifuling (Poria, 2 qian) Gancao (Glycyrrhizae Radix et Rhizoma, fried, 0.5 qian)
Add fresh ginger, jujube, and mume fruit, decoct in water, and take one to two doses. Subsequently, administer Fuling Wan (Poria Pill).
Renshen Jupi Tang (i.e., Shenju San) (see An Tai / Calming the Fetus)
Erchen Tang (Two-Cured Decoction) (see An Tai / Calming the Fetus)
Xiaoheshang Yin (Minor Harmonizing Middle Infusion) (see An Tai / Calming the Fetus)
For those with Spleen-Stomach Qi deficiency, Wuyi Yigong San (Five-Ingredient Extraordinary Merit Powder), Liujunzi Tang (Six-Gentleman Decoction), or Renshen Jupi Tang are suitable. For those with Stomach deficiency combined with cold and frequent vomiting, Liuwei Yigong Jian (Six-Ingredient Extraordinary Merit Decoction) or Wenwei Yin (Warming the Stomach Infusion) are appropriate. For vomiting caused by Liver-Kidney Yang deficiency, Liyin Jian (Nourishing Yin Decoction) is indicated.
Wuyi Yigong San (Five-Ingredient Extraordinary Merit Powder) (see *Gu Fang Ba Zhen · Bu Zhen* / Ancient Formulas Eight Arrays · Tonifying Array) treats Spleen-Stomach deficiency-cold, lack of appetite, vomiting, or chronic cough, along with facial edema, rebellious Qi, and abdominal distension.
Renshen (Ginseng Radix et Rhizoma) Baizhu (Atractylodis Macrocephalae Rhizoma, fried) Fuling (Poria) Zhigancao (Prepared Glycyrrhizae Radix et Rhizoma) Chenpi (Citri Reticulatae Pericarpium) (each 1 qian)
Add fresh ginger and jujube, decoct in water, and take orally.
Liujunzi Tang (Six-Gentleman Decoction) (see Menstrual Abdominal Pain)
Liuwei Yigong Jian (Six-Ingredient Extraordinary Merit Decoction) (see *Xin Fang Ba Zhen · Re Zhen* / New Formulas Eight Arrays · Heat Array) treats Spleen-Stomach deficiency-cold with vomiting, diarrhea, and slight stagnation.
This is simply Wuyi Yigong San with the addition of Ganjiang (Zingiberis Rhizoma).
Wenwei Yin (Warming the Stomach Infusion) (see Blood Deficiency Menstrual Disorder)
Liyin Jian (Nourishing Yin Decoction) (see Blood Cold Delayed Menses)
Li Chan (styled Lizai) stated: Banxia (Pinelliae Rhizoma) is the principal herb for invigorating the Spleen and resolving phlegm stagnation. In cases of Spleen-Stomach deficiency with vomiting, or phlegm-saliva obstruction, lack of appetite, and fetal instability, Fuling Banxia Tang (Poria and Pinellia Decoction) must be used, with doubled Baizhu (Atractylodis Macrocephalae Rhizoma). Because Banxia, Baizhu, Fuling, Chenpi, and Sharen are effective in calming the fetal Qi and strengthening the Spleen and Stomach; I have frequently verified its efficacy.