辛，平，无毒。入手太阴、足厥阴经。消风散热，清头利目。解瘾疹瘰 ，疮疥惊热；
利咽
膈口齿，痰嗽瘙痒。含漱去舌苔语涩， 叶塞鼻衄蛇伤。治中风之失音，祛心腹之膨胀。破
血止痢亦疗，消食下气尤良。
处处有之，人家多栽莳之。二月宿根生苗，清明前后分之，方茎赤色，其叶对生，初莳
形长
产者良。
血痢不止，薄荷叶煎，常服。（验方第一。）
入水耳中，取浓汁滴入立效。（第二。）
清热化痰，蜜丸豆大，含之。（第三。）
皮肤瘙痒，同蝉蜕末酒下。（第四。）
眼弦赤烂，以姜汁浸一宿，晒干为末，沸汤泡洗。（第五。）
舌苔语蹇取汁合蜜、姜搽之。（第六。）
唇疮一切为细末，香油合敷。（第七。）
即水苏也。一名鸡苏。
辛，平，无毒。理气散热，平肺下气，消谷辟恶，清利头目。疗一切血症，吐衄咳唾之
疾、
淋痢崩带之 。
处处有之，多生水边。三月生苗，方茎中虚，叶似紫苏而微长，背面不紫，密齿面皱，
色青
，对节生。气甚辛烈。六七月开花成穗，如苏穗，水红色，穗中有细子，状如荆芥子，可种
，宿根亦自出。
一切吐衄咳唾血，或汤或末。（验方第一。）
香发，煎汁沐之。（第二。）
头生白屑。同上。（第三。）
中诸鱼毒，煎汁饮之。（第四。）
蛇虺毒，酒末下，并敷之。（第五。）
龙脑鸡苏丸 水苏（一斤） 生地（六两） 黄芩 蒲黄 麦冬 阿胶 台参 木
通柴胡（各
二两） 甘草 黄连（各一两）
炼蜜丸。治上焦热，除烦解劳，一切吐衄咳唾诸血，并治五淋血崩。（诸方第一。）
【薄荷茎叶】
味辛，性平，无毒。归入手太阴肺经、足厥阴肝经。具有疏散风热、清利头目的功效。可解除瘾疹（皮肤突发红色丘疹，瘙痒剧烈）、瘰疬（颈部淋巴结结核）、疮疥、惊热；通利咽喉、胸膈及口齿，治疗痰嗽、皮肤瘙痒。含漱可去除舌苔、改善言语涩滞；用叶片塞鼻可止鼻衄（鼻出血），治疗蛇伤。治疗中风导致的失音，祛除心腹部的胀满。破血止痢也有效，消食下气效果尤佳。
薄荷处处都有，百姓多种植它。二月时宿根生出幼苗，清明前后进行分株移栽，茎呈方形且为赤色，叶片对生，刚移栽时形状较长者品质优良。
血痢不止，用薄荷叶煎汤，经常服用。（验方第一。）
水进入耳中，取浓汁滴入，立即见效。（第二。）
清热化痰，制成蜜丸如豆大，含服。（第三。）
皮肤瘙痒，与蝉蜕粉末同用，酒送服。（第四。）
眼缘红肿溃烂，用姜汁浸泡一夜，晒干研末，用沸水泡洗。（第五。）
舌苔厚腻、言语蹇涩，取汁液混合蜂蜜、生姜涂抹。（第六。）
唇部疮疡一切症状，研为细末，用香油调和外敷。（第七。）
【龙脑薄荷】
即水苏。又名鸡苏。
味辛，性平，无毒。能理气散热，平降肺气、下气，消谷辟恶，清利头目。治疗各种血症，包括吐血、衄血、咳嗽唾血之疾，以及淋证、痢疾、崩漏、带下之症。
处处都有，多生长在水边。三月生出幼苗，茎呈方形中间空虚，叶片像紫苏但稍长，正反两面都不呈紫色，边缘有密齿且表面皱缩，颜色青绿，在节上对生。气味非常辛烈。六七月开花成穗，像苏的穗，水红色，穗中有细小的种子，形状像荆芥子，可以种植，宿根也能自行生出。
各种吐血、衄血、咳嗽唾血，或煎汤服用，或研末服用。（验方第一。）
头发香润，煎汁洗头。（第二。）
头部生白屑（头皮屑）。同上方法。（第三。）
中了各种鱼毒，煎汁饮用。（第四。）
被毒蛇咬伤，用酒调服粉末，并外敷伤口。（第五。）
【龙脑鸡苏丸】
组成：水苏（一斤）、生地（六两）、黄芩、蒲黄、麦冬、阿胶、台参、木通、柴胡（各二两）、甘草、黄连（各一两）。
炼蜜为丸。治疗上焦热盛，除烦解劳，各种吐血、衄血、咳嗽唾血等出血症，并治疗五淋、血崩。（诸方第一。）
[Menthae Haplocalycis Caulis et Folium]
Pungent, neutral, non-toxic. Enters the Hand-Taiyin Lung Meridian and Foot-Jueyin Liver Meridian. Disperses wind-heat, clears the head and benefits the eyes. Resolves urticaria (sudden onset of red papules on skin with intense itching), scrofula (tuberculous lymphadenitis of the neck), sores and scabies, and fright-heat; unblocks the throat, chest diaphragm, and teeth/mouth; treats phlegm-cough and pruritus. Gargling removes tongue coating and alleviates dysarthria; stuffing leaves into the nostrils stops epistaxis and treats snakebites. Treats aphonia due to stroke; dispels distension in the heart and abdomen. Breaks blood stasis and stops dysentery; promotes digestion and directs rebellious Qi downward is particularly effective.
It grows everywhere, and households often cultivate it. In February, perennial roots sprout seedlings; they are divided and transplanted around Qingming Festival. The stem is square and reddish; leaves are opposite. Those newly transplanted with elongated shapes are considered superior.
For unremitting bloody dysentery, decoct Menthae Haplocalycis Folium and take frequently. (Verified Formula 1.)
If water enters the ear, extract thick juice and drip in for immediate effect. (2.)
To clear heat and resolve phlegm, make honey pills the size of beans and hold in mouth. (3.)
For cutaneous pruritus, mix with powder of Cicada Slough and swallow with wine. (4.)
For erythema and ulceration of the eyelid margin, soak in ginger juice overnight, dry, powder, and wash with boiling water infusion. (5.)
For thick tongue coating and dysarthria, extract juice, mix with honey and ginger, and apply externally. (6.)
For all types of lip sores, powder finely, mix with sesame oil, and apply topically. (7.)
[Longnao Bohe / Pogostemonis Herba]
This is Pogostemonis Herba (Water Mint). Also known as Jisu.
Pungent, neutral, non-toxic. Regulates Qi and disperses heat, calms Lung Qi and directs it downward, aids digestion and repels malignancy, clears the head and benefits the eyes. Treats all hemorrhagic diseases, including hematemesis, epistaxis, and hemoptysis; also treats strangury, dysentery, metrorrhagia, and leukorrhea.
Grows everywhere, mostly near water. Seedlings emerge in March. The stem is square and hollow inside; leaves resemble Perillae Folium but are slightly longer; both surfaces are not purplish; margins have dense serrations and a wrinkled surface; color is green; leaves grow oppositely at nodes. The odor is very pungent and strong. Flowers form spikes in June and July, resembling Perilla spikes, water-red in color; spikes contain fine seeds resembling Schizonepetae Spica seeds, which can be planted; perennial roots also sprout spontaneously.
For all types of hematemesis, epistaxis, and hemoptysis, either decoct or use powder. (Verified Formula 1.)
To make hair fragrant, decoct and wash hair. (2.)
For white dandruff on the head. Same method as above. (3.)
For poisoning from various fish, decoct and drink. (4.)
For venomous snakebite, take powder with wine and apply topically. (5.)
[Longnao Jisu Wan]
Ingredients: Pogostemonis Herba (1 jin), Shengdi Huang (6 liang), Huangqin, Puhuang, Maidong, Ejiao, Taishen, Mutong, Chaihu (each 2 liang), Gancao, Huanglian (each 1 liang).
Made into pills with refined honey. Treats upper jiao heat excess, relieves irritability and fatigue, all types of bleeding such as hematemesis, epistaxis, and hemoptysis; also treats five types of strangury and metrorrhagia. (Formulas 1.)