经曰地之湿气感则害人皮肉筋脉或卧卑湿之地或感山岚蒸气令人一身尽痛身目俱黄肢体
沉重此外气之所伤也又曰诸湿肿满皆属于脾土其症 肿体重腹胀浮肿肉如泥按之不起小便不
利此因内伤而受之也从外而受者宜汗从内而致者宜疏通渗泄又曰治湿不利小便非其治也所谓
开鬼门洁净府此治湿之大略也
一湿症脉沉数而小便赤少作渴而为湿热宜清利之佐以柏皮酒芩之类
一湿症脉沉濡小便清大便泄身疼不热宜温暖之佐以附子姜桂之类
一湿病身目俱黄内热小便赤少宜用 五苓散加茵陈
一肾气虚弱之人当风取凉久卧湿地腰背拘急筋挛骨痛脚膝冷痹行步艰难宜用 独活寄生
汤当归活血汤
一内伤脾气浮肿者宜用 五苓散 五皮汤 橘皮汤
一湿症身重痛胸不快恶心大便溏宜用 除湿汤
一因风雨卑湿感受浑身重痛腰冷如坐水中此为肾着宜用 肾着汤 渗湿汤
一受寒湿腰痛者宜用 生附汤
一六七月间湿令大行子能令母实湿热相合而刑庚金金受湿热之邪绝寒水生化之源源绝则
肾亏痿厥之病大作腰以下痿软瘫痪不能行两足欹侧宜用 清燥汤
一项似拔腰似折头疼脊强宜用 羌活胜湿汤
治感气湿腰背疼痛脚膝冷麻无力拘急筋挛
独活 桑寄生 杜仲 牛膝 细辛 秦艽 熟地黄 茯苓 桂心 防风 川芎 人参
甘草 当归 芍药 水二钟姜三片煎八分食远服
《黄帝内经》说：大地的湿气，如果侵袭人体，就会伤害皮肉筋脉。有的人睡在低洼潮湿的地方，或者感受山间的雾气蒸气，导致全身疼痛，身体和眼睛都发黄，肢体沉重，这是外感邪气所致的损伤。又说：“各种湿邪引起的肿胀、腹满，都归属于脾土。”其症状表现为浮肿、身体沉重、腹部胀满、肌肉松弛如泥、按压后不能立即回弹、小便不通利，这是因内伤而受病的。从外部感受的湿邪，适宜用发汗法治疗；从内部产生的湿邪，适宜用疏通、渗泄的方法治疗。又说：“治疗湿病如果不通利小便，就不是正确的治法。”这就是所谓的“开鬼门（发汗），洁净府（利小便）”，这是治疗湿病的大致原则。
《黄帝内经》说：中湿病的脉象，沉濡而弱，或浮而缓，说明湿邪在表；脉象沉而缓，说明湿邪在里。
一种湿症，脉象沉数，小便短赤，口渴，属于湿热，适宜清利，辅以黄柏、酒芩等药物。
一种湿症，脉象沉濡，小便清长，大便泄泻，身体疼痛但不发热，适宜温补，辅以附子、干姜、肉桂等药物。
一种湿病，身体和眼睛都发黄，内有热象，小便短赤，适宜使用五苓散加茵陈。
一种肾气虚弱的人，当风乘凉，久卧湿地，导致腰背拘急、筋挛、骨痛，脚膝冷痹，行走困难，适宜使用独活寄生汤或当归活血汤。
一种因内伤脾气导致的浮肿，适宜使用五苓散、五皮汤或橘皮汤。
一种湿症，身体沉重疼痛，胸脘不适，恶心，大便溏薄，适宜使用除湿汤。
一种因风雨和低洼潮湿环境感受邪气，导致浑身重痛，腰部冷得像坐在水中一样，这称为肾着，适宜使用肾着汤或渗湿汤。
一种感受寒湿导致的腰痛，适宜使用生附汤。
一种在六七月间，湿令盛行，子能令母实，湿热相合而克制肺金（庚金），肺金受到湿热邪气的侵害，导致寒水生化之源断绝，源绝则肾亏，痿厥之病大作，腰部以下痿软瘫痪不能行走，两足歪斜，适宜使用清燥汤。
一种感觉脖子像被拔起、腰部像折断、头痛、脊柱强直，适宜使用羌活胜湿汤。
治疗感受湿气导致的腰背疼痛，脚膝冷麻无力，拘急筋挛：
独活、桑寄生、杜仲、牛膝、细辛、秦艽、熟地黄、茯苓、桂心、防风、川芎、人参、甘草、当归、芍药。用水两钟，生姜三片，煎至八分，饭后服用。
The *Huangdi Neijing* (Yellow Emperor's Inner Canon) states: The dampness of the earth, if it invades the human body, will damage the skin, flesh, sinews, and vessels. Some people lie in low-lying damp places or are affected by mountain mists and vapors, resulting in whole-body pain, yellowing of both the body and eyes, and heavy limbs; this is an injury caused by external pathogenic factors. It is also stated: "All swellings and fullness due to dampness belong to Spleen Earth." Its symptoms include edema, heavy body, abdominal distension, flaccid muscles like mud that do not rebound upon pressure, and difficult urination; this is a condition contracted due to internal injury. For dampness contracted from the exterior, sweating therapy is appropriate; for dampness originating from the interior, unblocking and draining-dampness therapies are appropriate. It is also said: "To treat dampness without promoting diuresis is not the correct treatment." This refers to "opening the ghost gate (sweating) and cleansing the net house (bladder/diuresis)," which is the general principle for treating dampness.
The *Huangdi Neijing* states: In cases of dampness obstruction, a deep, soggy, and weak pulse, or a floating and moderate pulse, indicates dampness in the exterior; a deep and moderate pulse indicates dampness in the interior.
In one type of dampness syndrome with a deep and rapid pulse, scanty dark urine, and thirst, it is classified as damp-heat, suitable for clearing and draining, assisted by herbs such as Cortex Phellodendri (Baihuangbo, 黄柏) and Scutellariae Radix prepared with wine (Jiuqin, 酒芩).
In another type of dampness syndrome with a deep and soggy pulse, clear urine, loose stools, body pain but no fever, it is suitable for warming and tonifying, assisted by herbs such as Aconiti Lateralis Radix Preparata (Fuzi, 附子), Zingiberis Rhizoma (Ganjiang, 干姜), and Cinnamomi Ramulus (Rougui, 肉桂).
In one type of damp disease with yellowing of the body and eyes, internal heat, and scanty dark urine, Wuling San (Five-Ingredient Powder with Poria) plus Yinchen (Artemisiae Scopariae Herba) should be used.
For individuals with weak Kidney Qi who expose themselves to wind while seeking coolness and lie on damp ground for long periods, leading to stiffness and spasms of the lower back and spine, bone pain, cold bi-syndrome in the feet and knees, and difficulty walking, Duhuo Jisheng Tang (Decoction of Angelica Pubescens and Taxillus) or Danggui Huoxue Tang (Decoction of Angelica Sinensis for Invigorating Blood) should be used.
For edema caused by internal injury to Spleen Qi, Wuling San (Five-Ingredient Powder with Poria), Wupi Tang (Decoction of Five Barks), or Jupi Tang (Decoction of Tangerine Peel) should be used.
For a dampness syndrome characterized by heavy and painful body, chest discomfort, nausea, and loose stools, Chushi Tang (Dampness-Expelling Decoction) should be used.
For conditions caused by exposure to wind, rain, and low-lying dampness, resulting in whole-body heaviness and pain, and a cold sensation in the waist as if sitting in water, known as Shen Zhuo (Kidney Fixation), Shenzhuo Tang (Decoction for Kidney Fixation) or Shenshi Tang (Dampness-Draining Decoction) should be used.
For lumbar pain caused by cold-dampness invasion, Shengfu Tang (Raw Aconite Decoction) should be used.
During the sixth and seventh lunar months, when dampness prevails, the "child can make the mother full" (Liver Wood generating Heart Fire or similar generative cycle imbalance), leading to damp-heat combining to attack Lung Metal (Geng Metal). When Lung Metal is damaged by damp-heat, the source of Cold Water generation is cut off; when the source is cut off, Kidney deficiency occurs, causing severe Wei-Jue (Atrophy and Paralysis) syndromes. Symptoms include flaccidity and paralysis below the waist, inability to walk, and tilting of the two feet; Qingzao Tang (Dryness-Clearing Decoction) should be used.
For sensations of the neck being pulled, the waist breaking, headache, and spinal rigidity, Qianghuo Shengshi Tang (Notopterygium Decoction for Overcoming Dampness) should be used.
Treatment for lumbar and back pain, cold numbness and weakness in the feet and knees, stiffness, and spasms due to dampness invasion:
Radix Angelicae Pubescentis (Duhuo, 独活), Radix et Caulis Taxilli (Sangjisheng, 桑寄生), Cortex Eucommiae (Duzhong, 杜仲), Radix Achyranthis Bidentatae (Niuxi, 牛膝), Radix Asari (Xixin, 细辛), Herba Gentianae Macrophyllae (Qinjiao, 秦艽), Prepared Radix Rehmanniae (Shudihuang, 熟地黄), Poria (Fuling, 茯苓), Cinnamomi Ramulus (Guixin, 桂心), Radix Saposhnikoviae (Fangfeng, 防风), Radix Chuanxiong (Chuanxiong, 川芎), Radix Glycyrrhizae (Gancao, 甘草), Radix Angelicae Sinensis (Danggui, 当归), Radix Paeoniae Alba (Shaoyao, 芍药). Use two cups of water and three slices of Zingiberis Rhizoma Recens (Shengjiang, 生姜), decoct until eight-tenths remains, and take after meals.