辛、甘，微温。入足太阴、阳明经气分。温中快气，理脾和胃，为吐逆要药。治上中二
焦邪
气壅滞，霍乱吐泻，心腹绞痛，去恶气，疗水毒，除饮酒口臭。得滑石，治暑月吐泻。（加
丁香，尤效。）配豆仁，治饮酒口臭。广产者良。叶主散，茎主通。胃弱胃热而呕，阴虚火
旺者，禁用。
一名蕙草，一名香草，一名零陵香。
伏三黄、朱砂。
辛，温。入足太阴、阳明经。治心腹恶气，齿痛鼻塞。得升麻、细辛，治牙齿肿痛。得
川连
、当归，治伤寒下痢。配木香，治五色痢。配荜茇，擦风虫牙痛。配白芷，治头风白屑。
多服作喘，耗散真气。
一名省头草，一名孩儿菊，亦名香草。
辛，平。入手足太阴、足阳明经气分。除陈气，（肥甘积滞不化之气。）止消渴，利水道，
消
痰癖，疗胆疸，辟恶气，散痈肿，调月经，解中牛马蛊毒。
兰草、泽兰，一类二种，俱生水旁下湿处。紫茎、素枝、赤节、绿叶，叶对节生，有细
齿，
但以茎圆节长，叶光有歧者为兰草。茎微方，节短，叶有毛者为泽兰。嫩时并可采而佩之。
胃气虚者禁用。
亦名孩儿菊
防己为之使。
苦、辛、温。入足厥阴，兼足太阴经血分。破宿血，去症瘕，兼除痰癖、蛊虫，能疗目
痛痈
肿。配防己，治产后水肿。配当归，治月水不利。
煎汤熏洗产后阴户燥热，遂成翻花。（再加枯矾煎洗之即安。）
根名地笋，主治同。血虚枯秘者禁用。
怪症∶忽然疼痛，或遍身疼痛异常，名鬼箭风。用泽兰一两，桃仁三十粒，酒水各半煎
服。
藿香：味辛、甘，性微温。归足太阴脾经和足阳明胃经的气分。能温中理气，调理脾胃，是治疗呕吐逆气的要药。主治上焦和中焦邪气壅滞，霍乱吐泻，心腹绞痛，去除恶气，治疗水毒，消除饮酒后的口臭。与滑石配伍，可治疗暑月期间的吐泻。（加入丁香，效果更佳。）与豆仁配伍，可治疗饮酒后的口臭。以广地产者为佳。藿香的叶主发散，茎主通利。胃弱或胃热而呕吐者，以及阴虚火旺者，禁用。
又名蕙草，又名香草，又名零陵香。
畏伏龙肝（灶心土）、三黄（黄连、黄芩、黄柏）、朱砂。
味辛，性温。归足太阴脾经和足阳明胃经。治疗心腹间的恶气，牙齿疼痛，鼻塞。与升麻、细辛配伍，治疗牙齿肿痛。与川黄连、当归配伍，治疗伤寒引起的下痢。与木香配伍，治疗五色痢。与荜茇配伍，擦敷治疗风虫牙痛。与白芷配伍，治疗头风引起的头皮白屑。多服会导致气喘，耗散真气。
又名省头草，又名孩儿菊，也名为香草。
味辛，性平。归手足太阴经和足阳明经的气分。去除陈腐之气（指肥甘厚味积滞不化产生的浊气），止消渴，通利水道，消除痰癖，治疗胆疸，辟除恶气，消散痈肿，调经，解除被牛马蛊毒中毒的症状。
兰草和泽兰，属于同类两种药材，都生长在水边潮湿的地方。茎呈紫色，枝条素白，节部呈红色，叶片绿色，叶子对生于节上，边缘有细齿。主要区别在于：茎圆、节长、叶面光滑且有分叉的是兰草；茎微方、节短、叶面有毛的是泽兰。嫩时均可采摘佩戴。
胃气虚弱者禁用。
又名孩儿菊。
防己为其使药。
味苦、辛，性温。归足厥阴肝经，兼入足太阴脾经的血分。破除陈旧瘀血，去除症瘕积聚，兼除痰癖、蛊虫，能治疗目痛和痈肿。与防己配伍，治疗产后水肿。与当归配伍，治疗月经不畅。
煎汤熏洗产后阴户燥热导致的翻花疮。（再加枯矾煎水洗之即可安宁。）
根名为地笋，主治功效相同。血虚枯秘者禁用。
怪症：忽然疼痛，或遍身异常疼痛，名为鬼箭风。用泽兰一两，桃仁三十粒，酒和水各半煎服。
Huo Xiang (Patchouli Herb): Pungent, sweet, slightly warm. Enters the Qi aspect of the Foot-Taiyin (Spleen) and Foot-Yangming (Stomach) meridians. Warms the middle and promotes the free flow of Qi, regulates the Spleen and harmonizes the Stomach; it is a crucial herb for treating vomiting and regurgitation. Treats stagnation of pathogenic Qi in the Upper and Middle Jiao, cholera with vomiting and diarrhea, severe colic, expels foul odors, treats water toxicity, and eliminates halitosis after drinking alcohol. Combined with Huashi (Talcum), it treats vomiting and diarrhea during summer heat. (Adding Dingxiang (Clove) enhances efficacy.) Combined with Dou Ren (Bean Kernel), it treats halitosis after drinking alcohol. Those produced in Guang are superior. The leaves primarily disperse, while the stems primarily unblock. Contraindicated in cases of weak stomach or stomach heat causing vomiting, and in Yin deficiency with fire hyperactivity.
Also known as Huicao (Orchid Grass), Xiangcao (Fragrant Grass), and Linglingxiang (Lingling Fragrance).
Incompatible with Fuhuang (Vat Earth), Sanhuang (Three Yellows: Coptidis Rhizoma, Scutellariae Radix, Phellodendri Cortex), and Zhusha (Cinnabar).
Pungent, warm. Enters the Foot-Taiyin (Spleen) and Foot-Yangming (Stomach) meridians. Treats foul Qi in the heart and abdomen, toothache, and nasal congestion. Combined with Shengma (Cimicifugae Rhizoma) and Xixin (Asari Radix et Rhizoma), it treats swollen and painful teeth. Chuanlian (Coptidis Rhizoma) combined with Danggui (Angelicae Sinensis Radix) treats dysentery caused by Shanghan (Cold Damage). Muxiang (Aucklandiae Radix) combined treats Wuse Li (Five-Color Dysentery). Bibo (Long Pepper Fruit) applied externally treats wind-worm toothache. Baizhi (Angelicae Dahuricae Radix) combined treats head wind with dandruff. Excessive consumption causes panting and depletes True Qi.
Also known as Shengtoucao (Head-Provoking Grass), Hai'erju (Child's Chrysanthemum), and also named Xiangcao (Fragrant Grass).
Pungent, neutral. Enters the Qi aspect of the Hand-Foot Taiyin and Foot-Yangming meridians. Removes stale Qi (Qi generated from indigestion of rich and sweet foods), stops Xiao Ke (Wasting-Thirst), promotes urination, eliminates Tan Pi (Phlegm-Pi accumulation), treats Dan Dan (Gallbladder Jaundice), wards off foul Qi, disperses carbuncles and swellings, regulates menstruation, and resolves poisoning from Niu Ma Gu Du (poisonous蛊毒 associated with cattle and horses).
Lan Cao (Agastache Rugosa) and Ze Lan (Leonurus Japonicus Herba) are of the same genus but different species, both growing in damp places near water. They have purple stems, pale branches, red nodes, and green leaves; leaves grow opposite at the nodes with fine serrations. The distinction lies in: Lan Cao has round stems, long nodes, smooth leaves with bifurcations; Ze Lan has slightly square stems, short nodes, and hairy leaves. Both can be harvested when tender and worn.
Contraindicated in cases of deficient Stomach Qi.
Also known as Hai'erju (Child's Chrysanthemum).
Fangji (Stephaniae Tetrandrae Radix) acts as its guiding/enabling herb.
Bitter, pungent, warm. Enters the Blood aspect of the Foot-Jueyin (Liver) meridian, and concurrently the Foot-Taiyin (Spleen) meridian. Breaks old blood stasis, removes Zheng Jia (masses and accumulations), eliminates phlegm-pi and gu worms, and treats eye pain and carbuncle swellings. Combined with Fangji (Stephaniae Tetrandrae Radix), it treats postpartum edema. Combined with Danggui (Angelicae Sinensis Radix), it treats irregular menstruation.
Decocted for fumigation and washing to treat dryness and heat in the vaginal orifice postpartum leading to "Fan Hua" (flower-like prolapse/caruncles). (Adding Kunfan (Alumen) for decoction and washing brings immediate relief.)
The root is named Di Sun (Houttuynia Cordata Rhizome/Stem), with identical main indications. Contraindicated in cases of blood deficiency with dry constipation.
Strange Syndrome: Sudden pain, or abnormal pain all over the body, named Gui Jian Feng (Ghost Arrow Wind). Use Ze Lan (Leonurus Japonicus Herba) 1 liang, Tao Ren (Prunus Persica Seed) 30 grains, decocted with half wine and half water for oral administration.