病有水肿相类者，曰肤胀、鼓胀、肠覃、石瘕、脾气横泄五种，治法亦复不同，除鼓胀
见胀满门，肠覃、石瘕见妇人门，今具肤胀及脾气横泄如后。
治寒客皮肤，壳壳然而坚，腹大身肿，按之陷而不起，色不变，病名肤胀
。一剂未知，再作。
大附子(重七钱者，一只，生，去皮脐，半破) 绿豆（二两）
上以生姜一两切，水二碗，煎至一碗，绞去滓，分三服，空腹温服；次日将前附子破作
四片，再用绿豆二两、姜一两，如前煎服；第三日，复将附子作八片，如前煎。
治脾气横泄，四肢浮肿，心腹胀满，喘不得卧。
蓬术(煨) 三棱(煨，各一两） 大腹皮(炙，二两） 木香(炮) 槟榔（一分，生)
上为末，炒麦 捣粉为丸，如梧子大。每服二十丸，生姜汤下。
小三棱煎 治如前。(方见 瘕门)
治脾胃不和，胸膈噎塞，腹胁疼痛，气促喘急，心下胀满，饮食不进，呕
吐不止；兼脾气横泄，四肢浮肿。
五味子 桔梗 茯苓 甘草(炙) 陈皮 桑白皮 草果 大腹皮（各二两半） 紫苏叶
上为粗末。每服四钱，水一盏，姜三片，盐少许，煎七分，去滓，食前服。
治气急，积久不瘥，遂成水肿，如此者众。诸皮中浮，以水攻面目身体，
从腰以上肿，当以此汤发汗。
麻黄（二两，去节汤) 甘草（一两）
上为锉散。每服四钱，水一盏半，煎七分，去滓，空腹温服。
疾病中有与水肿症状相似的情况，包括肤胀、鼓胀、肠覃、石瘕、脾气横泄这五种病证，它们的治疗方法也各不相同。其中，鼓胀的论述参见“胀满”章节，肠覃和石瘕的论述参见“妇人”章节，现将肤胀及脾气横泄的治法详述如下。
治疗寒邪客居皮肤所致之肤胀，症见皮肤坚硬如壳，腹部膨大且全身浮肿，按压凹陷不能立即复原，肤色无改变，此病名为肤胀。若服用一剂后病情未见明显好转，可再次制作服用。
处方：大附子（重七钱的生附子一枚，去皮及脐部，半破开）、绿豆（二两）。
用法：将生姜一两切片，加水两碗，煎煮至剩一碗药液，滤去药渣，分三次温服，空腹服用；次日将前次使用的附子再破为四片，另用绿豆二两、生姜一两，按前述方法煎煮服用；第三日，再将附子破为八片，同样按前述方法煎煮服用。
治疗脾气横泄，症见四肢浮肿，心腹部胀满，气喘无法平卧。
处方：蓬术（煨制）、三棱（煨制，各一两）、大腹皮（炙制，二两）、木香（炮制）、槟榔（一分，生用）。
用法：将上述药材研为细末，用炒麦捣粉作为粘合剂制成丸剂，大小如梧桐子。每次服用二十丸，用生姜汤送服。
另有小三棱煎，治疗方法同上。（该方剂详见“瘕”门）
治疗脾胃不和，症见胸膈阻塞感，腹部及胁肋疼痛，气短喘急，胃脘部胀满，饮食不进，呕吐不止；兼有脾气横泄，四肢浮肿。
处方：五味子、桔梗、茯苓、甘草（炙制）、陈皮、桑白皮、草果、大腹皮（各二两半）、紫苏叶。
用法：将上述药材加工成粗末。每次取四钱药末，加水一盏，生姜三片，少许食盐，煎煮至剩余七分药液，滤去药渣，饭前服用。
治疗气急，病程长久不愈，最终演变为水肿，此类情况较为常见。若表现为皮肤浮肿，以水湿攻注于面目身体，腰部以上肿胀，应当使用此汤剂通过发汗来治疗。
处方：麻黄（二两，去节，用汤浸过）、甘草（一两）。
用法：将上述药材切碎成散剂。每次取四钱，加水一盏半，煎煮至剩余七分药液，滤去药渣，空腹温服。
There are diseases that resemble edema, namely skin distension (Fu Zhang), drum distension (Gu Zhang), intestinal polyp (Chang Qin), stone fibroma (Shi Xia), and spleen qi horizontal leakage (Pi Qi Heng Xie). Their treatment methods also differ. Drum distension is discussed in the "Distension" section, while intestinal polyp and stone fibroma are discussed in the "Women's Diseases" section. Hereinafter, the treatments for skin distension and spleen qi horizontal leakage are detailed.
For skin distension caused by cold pathogens lodging in the skin, symptoms include skin that is hard like a shell, abdominal enlargement, and whole-body swelling. Pressing the area leaves an indentation that does not rise immediately, with no change in skin color. This condition is named skin distension. If one dose yields no significant improvement, prepare and administer another dose.
Prescription: Large Aconite Root (one raw Aconiti Lateralis Radix Praeparata weighing seven qian, peeled of skin and navel, half-broken); Mung Bean (two liang).
Administration: Slice one liang of fresh ginger, add two bowls of water, and decoct until one bowl remains. Strain to remove dregs, divide into three doses, and take warm on an empty stomach. On the second day, break the previously used Aconite root into four pieces, use two liang of mung beans and one liang of ginger, and decoct as before. On the third day, break the Aconite root into eight pieces and decoct as before.
For spleen qi horizontal leakage, characterized by swelling of the four limbs, fullness and distension in the heart and abdomen, and asthma preventing lying down.
Prescription: Curcuma Zedoaria Rhizome (roasted) [Curcumae Zedoariae Rhizoma]; Burreed Tuber (roasted) [Sparganii Rhizoma] (each one liang); Areca Peel (fried) [Arecae Pericarpium]; Aucklandia Root (processed) [Aucklandiae Radix]; Betel Nut (one fen, raw) [Arecae Semen].
Administration: Grind the above herbs into powder. Use fried wheat ground into flour as a binder to make pills the size of wu zi (seeds of Cercis chinensis). Take twenty pills per dose, washed down with ginger soup.
Xiao San Leng Jian treats the same condition as above. (See the "Fibroma" section for this formula.)
For disharmony between the spleen and stomach, characterized by a choking sensation in the chest and diaphragm, pain in the abdomen and hypochondrium, shortness of breath and rapid asthma, fullness below the heart, inability to eat, and incessant vomiting; accompanied by spleen qi horizontal leakage and swelling of the four limbs.
Prescription: Schisandra Fruit (Wuweizi); Platycodon Root (Jiegeng); Poria (Fuling); Licorice Root (fried) [Glycyrrhizae Radix et Rhizoma]; Tangerine Peel (Chenpi); Mulberry Root Bark (Sangbaipi); Black Cardamom (Caoguo); Areca Peel (Dafupi) (each two and a half liang); Perilla Leaf (Zisuye).
Administration: Process the above herbs into coarse powder. Take four qian per dose, add one bowl of water, three slices of ginger, and a little salt. Decoct until seven-tenths remain, strain, and take before meals.
For rapid asthma that persists for a long time without recovery, eventually leading to edema, which is a common occurrence. When floating edema affects the face, eyes, and body due to water retention, specifically swelling above the waist, this decoction should be used to induce sweating.
Prescription: Ephedra Stem (two liang, nodes removed, soaked in boiling water) [Ephedrae Herba]; Licorice Root (one liang) [Glycyrrhizae Radix et Rhizoma].
Administration: Cut the above herbs into a coarse powder. Take four qian per dose, add one and a half bowls of water, decoct until seven-tenths remain, strain, and take warm on an empty stomach.