怀胎三月以后。两足浮肿。行步艰难。食不甘味。且喘状如水气。名曰子气。古方一主于湿
。大率浮肿。因脾虚者多。若喘则因肺肾。盖以脾主四肢。脾气虚弱。不能制水。而发肿。
肺肾少母气滋赖。则气促满闷。治宜补兼分利。与子肿互考。日肿夜消。如血虚更健脾兼养
其血。用川芎。当归。茯苓。白术。白芍。陈皮。秦艽。如心下胀。是浊气碍于上焦。加浓
朴。贝母。香附。前胡。大腹皮。苏叶等。一二味。若喘加杏仁。甚者加炒苏子。
按此症始自两足。渐至喘闷似水。足趾出水。谓之子气。乃妇人素有风气。或冲任有血风。
不可作水。妄投汤药。当以天仙藤散主之。
天仙藤(即青木香洗略炒) 香附(炒) 陈皮 甘草 乌药(各等分) 和匀为末。每服三钱。
姜三片。苏叶三片。木瓜三片。同煎空心服。三服后肿消。此方单氏作煎汤。加紫苏四分。如
虚加人参。白术。当归。如不效。兼服补中健脾之药。
(〔吴按〕以后三味。另煎水。送前药末。)
胎气不和。浊气举胎。而上凑。胸腹胀满。谓之子悬。然必面不赤。目不青者方是。不然则
胎坏矣。
苏叶(八分) 人参 大腹皮 川芎 白芍 陈皮(去白) 甘草(各一钱) 当归(酒浸二钱)
姜(三片) 葱白(一根) 空心服。此症挟气者多。非紫苏。腹皮。陈皮。川芎。无以疏其气
。非当归。白芍。无以利其血。气利血流而胎自下矣。邪之所凑。其气必虚。故用人参、甘
草补之。一补一泻。推陈而致新也。
怀孕三个月以后，出现双足浮肿，行走困难，饮食无味，并且气喘症状如同水气泛滥，这被称为“子气”。古方治疗此症主要侧重于祛湿。大凡浮肿，多因脾虚所致。如果伴有气喘，则与肺、肾有关。因为脾主四肢，脾气虚弱，不能制约水湿，从而导致浮肿；肺肾缺乏母气的滋养，就会出现气促、胸闷。治疗应当采用补益兼分利水湿的方法，可与“子肿”相互参照。如果是白天肿晚上消，且属于血虚者，应健脾并养血，使用川芎、当归、茯苓、白术、白芍、陈皮、秦艽等药。如果心下（胃脘部）胀满，这是浊气阻碍上焦，可加浓朴、贝母、香附、前胡、大腹皮、苏叶等一二味药。若气喘严重，加杏仁；甚者加炒苏子。
按语：此症始于两足，逐渐发展到气喘胸闷似有水气，甚至足趾渗出水液，称为“子气”。这是因为妇人素有风气，或冲任二脉有血风所致，不可当作普通水肿，妄投汤药。应当以天仙藤散为主治方剂。
天仙藤（即青木香，洗净略炒）、香附（炒）、陈皮、甘草、乌药（各等分），混合均匀研为细末。每次服用三钱，加生姜三片、紫苏叶三片、木瓜三片，同煎，空腹服用。服三剂后浮肿消退。此方单氏将其改为煎汤，加入紫苏四分。如属虚证，加人参、白术、当归。如果无效，兼服补中健脾的药物。
（〔吴评〕以上后三味药，另煎水，用来送服前面的药末。）
胎气不和，浊气上举导致胎位异常，向上冲逆，引起胸腹胀满，称为“子悬”。但必须见面色不红、眼睛不青的才算是此症，否则可能是胎死腹中。
紫苏叶（八分）、人参、大腹皮、川芎、白芍、陈皮（去白）、甘草（各一钱）、当归（酒浸二钱）、生姜（三片）、葱白（一根），空腹服用。此症多挟带气滞，非用紫苏、腹皮、陈皮、川芎无法疏理其气；非用当归、白芍无法调和其血。气顺血流通畅，胎位自然下降。邪气聚集之处，正气必然虚弱，所以用人参、甘草来补益正气。一补一泻，推陈出新。
After the third month of pregnancy, if both feet become edematous, walking is difficult, food tastes bland, and there is panting resembling water qi (fluid retention), it is named Ziqi (Fetal Qi). Ancient prescriptions primarily focus on resolving dampness. Generally, edema is mostly caused by Spleen deficiency. If panting occurs, it involves the Lung and Kidney. This is because the Spleen governs the four limbs; when Spleen Qi is weak, it cannot control water, leading to swelling. When the Lung and Kidney lack nourishment from the Mother Qi (Spleen Earth generating Metal and Water), shortness of breath and chest fullness occur. Treatment should involve tonification combined with separating and draining fluids, which can be cross-referenced with Zitong (Fetal Edema). If the swelling subsides at night but returns during the day, and is due to Blood deficiency, one should strengthen the Spleen and nourish the Blood using Chuanxiong Rhizome (Chuanxiong Radix), Angelicae Sinensis Radix (Danggui), Poria (Fuling), Atractylodis Macrocephalae Rhizoma (Baizhu), White Peony Root (Baishao), Tangerine Peel (Chenpi), and Gentianae Macrophyllae Radix (Qinjiao). If there is distension in the epigastrium (heart below), this indicates turbid Qi obstructing the Upper Jiao; add Magnoliae Officinalis Cortex (Houpo), Fritillariae Bulbus (Beimu), Cyperi Rhizoma (Xiangfu), Peucedani Radix (Qianhu), Arecae Pericarpium (Dafupi), and Perilla Leaf (Ziyu) in quantities of one or two herbs. If panting is severe, add Apricot Seed (Xingren); if extreme, add stir-fried Perilla Seed (Su Zi).
Note: This condition starts in the feet and gradually progresses to panting and chest oppression resembling water, with fluid oozing from the toe webs, termed Ziqi. It arises because the woman has pre-existing Wind pathogens or Blood-Wind in the Chong and Ren vessels. It should not be treated as ordinary water retention, nor should decoctions be administered recklessly. The primary treatment should be Tianshen Teng San (Immortals Vine Powder).
Tianshen Teng (i.e., Qingmuxiang/Aristolochiae Manshuriensis Radix, washed and lightly stir-fried), Xiangfu (stir-fried), Chenpi, Gancao, Wuyao (all in equal parts), mixed evenly and ground into powder. Take three qian per dose. Add three slices of Ginger, three leaves of Perilla, and three slices of Papaya Fruit (Mugua). Decoct together and take on an empty stomach. After three doses, the edema will subside. In Shan Shi's version, this formula is made into a decoction with the addition of four fen of Perilla Leaf. If deficiency is present, add Ginseng Radix et Rhizoma (Renshen), Atractylodis Macrocephalae Rhizoma (Baizhu), and Angelicae Sinensis Radix (Danggui). If ineffective, concurrently administer medicines that tonify the Middle and strengthen the Spleen.
([Wu's Comment] For the last three ingredients mentioned above, decoct them separately in water to deliver the aforementioned powder.)
When fetal Qi is disharmonious, turbid Qi lifts the fetus upward, causing chest and abdominal distension and fullness, known as Zixuan (Fetal Suspension). However, this diagnosis applies only if the face is not red and the eyes are not blue; otherwise, it may indicate fetal death.
Perilla Leaf (Ziyu, 8 fen), Ginseng Radix et Rhizoma (Renshen), Arecae Pericarpium (Dafupi), Chuanxiong Rhizome (Chuanxiong), White Peony Root (Baishao), Tangerine Peel (Chenpi, pith removed), Licorice Root (Gancao, 1 qian each), Angelicae Sinensis Radix (Danggui, soaked in wine, 2 qian), Ginger (3 slices), Scallion White (Congbai, 1 stalk). Take on an empty stomach. This condition often involves Qi stagnation; without Perilla Leaf, Arecae Pericarpium, Tangerine Peel, and Chuanxiong Rhizome, the Qi cannot be dispersed. Without Angelicae Sinensis Radix and White Peony Root, the Blood cannot be unblocked. Once Qi flows smoothly and Blood circulates freely, the fetus will naturally descend. Where evil pathogens gather, Qi must be deficient; therefore, Ginseng Radix et Rhizoma and Licorice Root are used to tonify. One tonifies, one drains, pushing out the old and bringing forth the new.