【歌】子气先从脚面浮，涓涓不治恐长流，全生白术天仙散，利水扶脾厥疾瘳。
【论】妊娠三月以后，两脚面渐肿，行走艰难以致喘闷，饮食无味，似水气状，脚趾间有黄水出，谓之子
气，直至分娩方消。此原素有风寒湿气及脾虚者，虽不可妄投汤药，亦虑将产之际有不测之虞。宜服天仙藤散
以疏郁。
陈良甫曰∶妊娠两脚浮肿，名曰脆脚。因脾衰不能制水，水血相搏所致，宜全生白术散健脾土。齐仲甫曰∶
子气不可作水病治，反伤元气，有此者必易产，因胞中水血多故也。初妊者，胎必坏，育亦行迟痿 。《名医
录》曰∶宋少主与徐文伯微行，见一妊足肿不能行，少主脉之曰∶此女胎也。文伯诊之曰∶此男胎，在左而黑，
少主怒，欲破之，文伯恻然曰∶臣请针之。刺三阴交，胎遂坠，男形而黑色，此足肿多男之征也。
【方】
天仙藤散
天仙藤 香附 陈皮 甘草 紫苏 木瓜 姜皮
全生白术散
白术（一两炒） 茯苓 陈皮 姜皮 大腹皮（各五钱）
为末米饮下二钱。
【歌】忽然昏冒不知人，有间苏来发作频，此是风邪肝木病，羚羊角散效如神。
【论】《产宝》曰∶风是四时八方之气，常以节气之日候之风，从其乡来者，谓之虚邪贼风，逢人之虚而中
之者，随其所在而病也。夫五脏六腑之俞皆在于背，脏腑虚者感发难治。若伤太阳之经，复遇寒湿相搏，口噤脊
强，名曰风痉。妊娠而发者，昏冒不识，人须臾则醒，醒后复发，名曰子痫，又名子冒。久则发痉，宜千金羚羊
角散，或葛根汤加竹沥。
【方】
羚羊角散
羚羊角 五加皮 防风 当归 酸枣仁 白茯神 独活 甘草 川芎 木香
姜引水煎。
葛根汤
葛根 茯苓 人参 泽泻 甘草 防己 防风 当归 川芎 独活
水煎，临服加竹沥半杯，姜汁两匙。
【歌诀】子气（妊娠期下肢水肿）最初从脚面开始浮肿，若不及时治疗恐病情加重蔓延，宜用全生白术散和天仙藤散，通过利水渗湿、扶助脾气使疾病痊愈。
【论述】妊娠三个月以后，双脚脚面逐渐肿胀，行走困难甚至出现气喘胸闷，饮食无味，症状类似水气病，脚趾间有黄水渗出，这称为子气，直到分娩后才会消退。这类患者原本就有风寒湿气侵袭及脾气虚弱的情况，虽然不能随意投用汤药，但也担心在临产之际发生不可测的意外。适宜服用天仙藤散以疏解郁滞。
陈良甫说：妊娠期间双脚浮肿，名为脆脚。这是因为脾衰不能制约水液，导致水血相互搏结所致，适宜用全生白术散健脾益气。齐仲甫说：子气不能当作普通的水病来治疗，否则会反伤元气，有此症状者必然容易生产，因为胞宫中水血较多之故。初次怀孕者，胎元必坏，生育也会行动迟缓且肢体痿弱。《名医录》记载：宋少主与徐文伯微服私访，看见一位孕妇足部肿胀无法行走，少主诊脉后说：这是女胎。徐文伯诊断说：这是男胎，位于左侧且颜色发黑。少主大怒，想要剖开检查，徐文伯怜悯地说：臣请求施针。针刺三阴交穴后，胎儿随即坠落，确为男形且肤色黑，这是足肿多怀男胎的征象。
全生白术散
白术（一两炒制） 茯苓 陈皮 姜皮 大腹皮（各五钱）
研为细末，米饮送服二钱。
【歌诀】忽然昏厥昏迷不知人事，间歇性苏醒但发作频繁，这是风邪侵犯肝木所致，羚羊角散疗效神速。
【论述】《产宝》说：风是四季八方之气，常在节气之日观察风向，从其所居之乡吹来的风，称为虚邪贼风，遇到人体虚弱之处而侵入，便随其所在部位致病。五脏六腑的腧穴都在背部，脏腑虚弱者感邪发病难以治愈。如果损伤太阳经，又遇寒湿相搏结，出现牙关紧闭、脊背强直，名为风痉。妊娠期间发作此症，表现为昏厥不识人，片刻后苏醒，醒后再次发作，名为子痫（妊娠期抽搐），又名子冒。久则发展为痉挛，宜用千金羚羊角散，或葛根汤加竹沥。
[Song] Zi Qi (edema during pregnancy) initially presents with swelling on the dorsum of the feet; if left untreated, it may worsen and spread. Quan Sheng Bai Zhu San (White Atractylodes Decoction for Complete Life) and Tian Xian Teng San (Akebia Vine Decoction) should be used to promote diuresis, strengthen the Spleen, and cure the disease.
[Discussion] After the third month of pregnancy, the dorsum of both feet gradually swells, making walking difficult and even causing panting and chest oppression. The appetite is poor, resembling symptoms of fluid retention diseases, with yellow fluid oozing from between the toes. This is called Zi Qi, which subsides only after delivery. These patients originally suffer from invasion of Wind-Cold-Dampness and Spleen Qi Deficiency. Although decoctions should not be administered arbitrarily, there is still concern about unpredictable complications at the time of labor. It is advisable to take Tian Xian Teng San to soothe stagnation.
Chen Liangfu stated: Bilateral foot edema during pregnancy is named Cui Jiao (Brittle Foot). It is caused by Spleen Decline failing to control Water, leading to a struggle between Water and Blood. Quan Sheng Bai Zhu San should be used to tonify the Spleen Earth. Qi Zhongfu stated: Zi Qi should not be treated as ordinary water disease, as doing so would damage Yuan Qi. Those with this condition will likely have easier deliveries because there is more Water and Blood in the Bao Zhong (uterus). For primigravida, the fetus will surely perish, and childbirth will be delayed with flaccidity. "Famous Doctors' Records" states: Emperor Shaozhu of Song and Xu Wenbo were incognito when they saw a pregnant woman whose feet were swollen and unable to walk. Shaozhu diagnosed via pulse-taking that it was a female fetus. Xu Wenbo diagnosed it as a male fetus located on the left side with black pigmentation. Shaozhu was angry and wanted to perform an abortion, but Xu Wenbo said compassionately, "Your servant requests to use acupuncture." After puncturing Sanyinjiao (SP6), the fetus was expelled immediately; it was indeed male-shaped and black. This indicates that foot edema is often a sign of carrying a male fetus.
[Formula]
Tian Xian Teng San (Akebia Vine Decoction)
Tian Xian Teng (Akebiae Caulis), Xiang Fu (Cyperi Rhizoma), Chen Pi (Citri Reticulatae Pericarpium), Gan Cao (Glycyrrhizae Radix et Rhizoma), Zi Su (Perillae Folium), Mu Gua (Chaenomelis Fructus), Jiang Pi (Zingiberis Cortex).
Quan Sheng Bai Zhu San (White Atractylodes Decoction for Complete Life)
Bai Zhu (Atractylodis Macrocephalae Rhizoma, 1 liang, stir-fried), Fu Ling (Poria), Chen Pi (Citri Reticulatae Pericarpium), Jiang Pi (Zingiberis Cortex), Da Fu Pi (Arecae Pericarpium, each 5 qian).
Grind into powder, take 2 qian with rice water.
[Song] Sudden fainting and unconsciousness, with intermittent recovery but frequent recurrences. This is due to Wind Pathogen invading the Liver Wood; Ling Yang Jiao San (Antelope Horn Decoction) is effective as if by magic.
[Discussion] "Chan Bao" states: Wind is the Qi of the four seasons and eight directions. One should observe the wind on solar term days; wind blowing from its native direction is called Xu Xie Zei Feng (Empty Evil and Robber Wind). When it encounters human deficiency, it invades and causes disease according to its location. The Shu points of the Zang-Fu organs are all located on the back; those with Zang-Fu deficiency find it difficult to treat infections. If the Tai Yang Meridian is injured and combined with Cold-Dampness, resulting in trismus and spinal rigidity, it is named Feng Jing (Wind Spasm). When occurring during pregnancy, characterized by fainting and loss of consciousness, followed by awakening after a moment and subsequent recurrence, it is named Zi Xian (Eclampsia), also known as Zi Mao. Prolonged cases develop spasms. Qian Jin Ling Yang Jiao San (Antelope Horn Decoction from Essential Prescriptions Worth a Thousand Gold) or Ge Gen Tang (Kudzu Root Decoction) with Zhu Li (Bamboo Sap) should be used.
[Formula]
Ling Yang Jiao San (Antelope Horn Decoction)
Ling Yang Jiao (Saiga Tataricae Cornu), Wu Jia Pi (Acanthopanacis Cortex), Fang Feng (Saposhnikoviae Radix), Dang Gui (Angelicae Sinensis Radix), Suan Zao Ren (Ziziphi Spinosae Semen), Bai Fu Shen (Poria with Hostwood), Du Huo (Angelicae Pubescentis Radix), Gan Cao (Glycyrrhizae Radix et Rhizoma), Chuan Xiong (Ligustici Chuanxiong Rhizoma), Mu Xiang (Aucklandiae Radix).
Decoct with water, using fresh ginger as a guide.
Ge Gen Tang (Kudzu Root Decoction)
Ge Gen (Puerariae Lobatae Radix), Fu Ling (Poria), Ren Shen (Ginseng Radix), Ze Xie (Alismatis Rhizoma), Gan Cao (Glycyrrhizae Radix et Rhizoma), Fang Ji (Stephaniae Tetrandrae Radix), Fang Feng (Saposhnikoviae Radix), Dang Gui (Angelicae Sinensis Radix), Chuan Xiong (Ligustici Chuanxiong Rhizoma), Du Huo (Angelicae Pubescentis Radix).
Decoct with water. Before administration, add half cup of Zhu Li (Bamboo Sap) and two spoons of Jiang Zhi (Fresh Ginger Juice).