开父之阳精而成，如结胎之始，居母腹之左，则肾之原根足，居右则不足，左者气血发原之所，故足于左而不
足于右。犹天地生物，同一土也，而有壮弱之茎焉。夫智愚总随气之清浊施化，然智有过不及，愚有甚不甚，
又随肾原足不足所分，如双胎得气皆清，居左则肾原足，则智常过中，居右则不足，则智常不及。得气皆浊而
左居之，则浊愈盛，愚亦愈甚也。
王肯堂治百户张锦，耳内不时作痛，痛而欲死，痛止如故。诊其脉，皆安静，非病也。话间痛忽作，王度
其有虫，令即取猫尿滴耳，果出一臭虫，遂不复作。或用麻油滴之，则虫死难出，或用炒芝麻枕之，则虫亦出，
但不及猫尿之速也。
〔源按〕虫入耳中，不独壁虱臭虫，如蚰蜒状类，蜈蚣而细甚者，亦能为害。昔有人昼卧，忽蚰蜒入耳，
渐觉脑痛，知其入脑莫能为计。一日将午饭，就案而睡，睡中忽喷
嚏，觉有物出鼻，视之有鸡馔置案，蚰蜒已居其上，所痛随愈。
又一人患虫入脑而痛，或教以桃叶函枕，一夕虫自鼻出，状如鹰嘴，人莫识其名。
透冰丹
川大黄 山栀仁 蔓荆子 白茯苓 益智仁 葳灵仙 白芷（各五钱） 香墨（烧醋淬干细研） 麝香（各一钱） 茯
神（六钱） 川乌（二两，水浸半月，切片焙干，用盐水炒） 天麻 仙灵脾叶（洗焙）
上为细末，炼蜜和如麦饭相似，以真酥涂杵，臼捣万杵，如干，旋入蜜令得和丸如梧子大。用薄荷自然汁，同温
酒化两丸，如卒中风，涎潮昏塞，煎皂荚、白矾汤，温化两丸。
升阳散化汤
柴胡（八钱） 防风（二钱五分） 葛根 升麻 羌活 独活 人参 白芍（五钱） 炙甘草（三钱） 生甘草（二
钱）
每服五钱，加姜枣煎。
左金丸
黄连（六两，姜汁炒） 吴茱萸（一两，盐水泡）
水丸。
六味地黄丸（见头门）
补中益气汤（见项门）
八味丸（见手足门）
黑逍遥散（见口门）
由父亲阳气与母亲阴精结合而成，如同受孕之初，位于母腹左侧，则肾脏的先天根基充足；位于右侧，则先天根基不足。左侧是气血发生的源头，所以在左侧充足而在右侧不足。这就像天地化生万物，虽然同出一土，但草木茎干有强壮与瘦弱之分。人的智慧与愚笨总体随气之清浊而变化，然而聪明有过分之处，愚笨也有程度深浅之别，这又取决于肾中先天元气的充足与否。例如双胎所得之气皆清，若居左位则肾原充足，其智力常超过常人平均水平；若居右位则肾原不足，其智力常不及常人平均水平。若所得之气皆浊而居左位，则浊气更盛，愚笨也更为严重。
王肯堂治疗百户张锦，耳内不时疼痛，痛欲致死，痛止后如常人一般。诊察其脉象，均显安静平和，并非疾病所致。交谈间疼痛突然发作，王肯堂推测耳中有虫，令立即取猫尿滴入耳中，果然排出一只臭虫，此后疼痛不再发作。或者用麻油滴入耳中，则虫子死亡难以排出；或者用炒熟的芝麻作枕头枕着，虫子也能出来，但不如猫尿迅速。
〔沈源按〕虫子进入耳中，不只有壁虱、臭虫，像蚰蜒这类形状类似蜈蚣且细小的，也能造成危害。过去有人白天躺着，忽然蚰蜒进入耳中，逐渐感到脑部疼痛，知道它已进入脑部，无可奈何。一天准备午饭时，趴在案几上睡觉，睡梦中忽然打喷嚏，感觉有东西从鼻中喷出，查看时发现案几上有鸡肴放置其上，蚰蜒已栖息在上面，随之疼痛痊愈。
又有一人患虫入脑而疼痛，有人教他用桃叶做枕头，一夜之间虫子自行从鼻中排出，形状像鹰嘴，人们不认识它的名字。
透冰丹
川大黄、山栀仁、蔓荆子、白茯苓、益智仁、葳灵仙、白芷（各五钱）、香墨（烧醋淬干后细研）、麝香（各一钱）、茯神（六钱）、川乌（二两，用水浸泡半个月，切片焙干，用盐水炒制）、天麻、仙灵脾叶（洗净焙干）。
以上药材研为细末，用炼蜜调和至类似麦饭的质地，用真酥涂抹药杵，在臼中捣打一万次，如果太干，随即加入蜂蜜使其能够和丸，制成梧桐子大小的药丸。用薄荷自然汁，配合温酒送服两丸；如果是突发中风，痰涎上涌、昏闷堵塞，则煎皂荚、白矾汤，温服化开两丸。
升阳散化汤
柴胡（八钱）、防风（二钱五分）、葛根、升麻、羌活、独活、人参、白芍（五钱）、炙甘草（三钱）、生甘草（二钱）。
每服五钱，加生姜、大枣煎煮服用。
Conceived from the father's Yang essence and mother's Yin essence, resembling the beginning of fetal formation. When located on the left side of the maternal abdomen, the root of the Kidney (Zang organ responsible for storing essence and governing reproduction) is sufficient; when on the right, it is insufficient. The left side is the source where Qi and Blood originate, hence sufficient on the left but insufficient on the right. This is akin to Heaven and Earth generating all things: although originating from the same soil, the stems of plants vary in strength and weakness. Intelligence and stupidity generally depend on the clarity or turbidity of Qi for transformation. However, intelligence may exceed or fall short of the mean, and stupidity varies in degree, further divided by the sufficiency or insufficiency of the Kidney's primordial root. For instance, in twins receiving clear Qi, if positioned on the left, the Kidney root is sufficient, leading to intelligence often exceeding the average; if on the right, the root is insufficient, leading to intelligence often falling below average. If both receive turbid Qi but are positioned on the left, the turbidity becomes more prevalent, and stupidity becomes more severe.
Weng Kentang treated Zhang Jin, a Hundred-Household Commander (Baihu), who suffered from intermittent ear pain so severe it felt like death, with normalcy returning once the pain ceased. Upon palpating his pulse, Weng found it calm and peaceful, indicating no disease. During conversation, the pain suddenly erupted. Weng deduced the presence of insects and instructed applying cat urine into the ear. Indeed, a stink bug was expelled, and the pain never recurred. Alternatively, dripping sesame oil could kill the insect but make expulsion difficult; sleeping on a pillow of fried sesame seeds could also expel the insect, though not as quickly as cat urine.
[Shen Yuan's Note] Insects entering the ear include not only lice and stink bugs, but also creatures resembling centipedes, such as house centipedes (Scutigera coleoptrata), which can cause harm. Once, a person lying down during the day had a house centipede enter his ear. He gradually felt brain pain, realizing it had entered the brain, leaving him helpless. One day, while preparing lunch, he fell asleep leaning on the table. Suddenly sneezing in his sleep, he felt something exit through his nose. Upon inspection, he saw chicken dishes placed on the table, with the house centipede resting upon them; the pain immediately subsided.
Another person suffered from brain pain due to an insect entering the brain. Someone advised using peach leaves as a pillow. Overnight, the insect exited through the nose, resembling an eagle's beak, and its name was unknown to people.
Toubing Dan (Ice-Penetrating Pill)
Rhubarb Radix et Rhizoma (Chuan Dahuang), Gardenia Fruit (Shanzhiren), Thunberg Fritillary Bulb (Manjingzi), Poria (Baifuling), Chinese Yam Rhizome (Yizhiren), Dangling Dragon Grass Root (Weilingxian), Angelica Dahurica Root (Baizhi) (each 5 qian), Ink Stick (Xiangmo, burnt and quenched in vinegar, then finely ground), Musk (Shexiang) (each 1 qian), Spirit of Poria (Fushen) (6 qian), Aconite Lateral Root Preparatum (Chuanwu, 2 liang, soaked in water for half a month, sliced, dried, and stir-fried with salt water), Gastrodia Rhizome (Tianma), Epimedium Leaf (Xianlingpiye, washed and dried).
Grind the above ingredients into fine powder. Mix with refined honey to a consistency similar to wheat dough. Coat the pestle with genuine butter (Su) and pound the mixture in a mortar ten thousand times. If too dry, add honey appropriately to form pills the size of mulberry seeds. Take two pills dissolved in fresh mint juice and warm wine. For sudden stroke with phlegm flooding and coma, dissolve two pills in warm decoction of Soap Bean Pod (Zaojia) and Alum (Baifan).
Shengyang Sanhua Tang (Ascending-Yang Dispersing-Transformation Decoction)
Bupleurum Root (Chaihu, 8 qian), Saposhnikovia Root (Fangfeng, 2.5 qian), Kudzu Root (Gegen), Cimicifuga Rhizome (Shengma), Notopterygium Rhizome (Qianghuo), Angelica Pubescens Root (Duhuo), Ginseng Radix (Renshen), White Peony Root (Baishao, 5 qian), Honey-fried Licorice Root (Zhigancao, 3 qian), Raw Licorice Root (Shenggancao, 2 qian).
Take 5 qian per dose, decoct with ginger and jujube.
Zuojin Wan (Left Metal Pill)
Coptis Rhizome (Huanglian, 6 liang, stir-fried with ginger juice), Evodia Fruit (Wuzhuyu, 1 liang, soaked in salt water).
Form into water pills.
Liuwei Dihuang Wan (Six-Ingredient Rehmannia Pill) (See Toumen section)
Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction) (See Xiangmen section)
Bawei Wan (Eight-Ingredient Pill) (See Shouzumen section)
Hei Xiaoyao San (Black Xiao Yao Powder) (See Koumen section)