味苦辛。性平。无毒。禀木中之阴气以生。降也。阴中阳也。
【主治】主霍乱中恶。赤白久痢。除疳 疥癣。牙齿虫痛。并煮服及含之。水浸洗目。
除肤
【归经】入脾胃二经。为祛风逐湿之品。（专行血分 去风杀虫能行经络直达病所）
【前论】苏颂曰。古方多用浸酒。治风 腰膝痛不可忍。
【禁忌】经疏曰。腰痛非由风湿者忌。
【炮制】苏颂曰。此出广南。皮白坚韧。可作绳索。入水不烂。
味辛咸。性温。无毒。禀木气而兼火金之性以生。升也。阳也。柏实为使。恶麦冬。
畏空青、人参、苦参。伏丹砂。即皂角。
【主治】主风痹死肌邪气。风头泪出。利九窍。杀精物。疗腹胀满。消谷。除咳嗽。囊
结。
风口噤
【归经】入肺大肠二经。为通窍搜风之品。（能通上下关窍）
【前论】好古曰。皂荚厥阴之药。活人书治阴毒。正气散内用皂荚。引入厥阴也。孙用
和曰
可使
为
秘
为外科要药。功同皂荚。但更锋锐。直达患所。溃散痈疽。
【禁忌】经疏曰。似中风症。由阴虚火炎。煎熬成痰。热极生风。至猝然仆蹶。不可遽
用稀
【炮制】好古曰。凡用皂荚。有蜜炙、酥炙、绞汁、烧灰之异。各依方用。
一名柽柳。禀阳春之气以生。升也。阳也。
【主治】主剥驴马血入肉毒。以木片火炙熨之。并煮汁浸之。（开宝）枝叶消痞。解酒
毒。
利小便。（时珍）
【归经】入心肺胃三经。为开发升散之品。（入血解血分之毒）
【前论】仲淳曰。近世治痧疹热毒不能出。用为发散之神药。经云。少阴所至为疡疹。
正刘
皮毛
也。
【海桐皮】
味苦、辛。性平。无毒。禀受树木中的阴气而生，性质沉降，属于阴中涵阳。
主治霍乱及中恶证，赤白久痢，去除疳积、疥癣，牙齿虫痛，均煎煮服用或含漱。用水浸泡后洗眼。
归经：入脾、胃二经，是祛风除湿的药物。（专行血分，去风杀虫，能通行经络直达病所）
前论：苏颂说，古方多用其浸酒，治疗风邪引起的腰膝剧痛不可忍受。
禁忌：缪希雍（《本草经疏》作者）说，腰痛若非风湿所致者忌用。
炮制：苏颂说，此药出自广南，皮色白且坚韧，可作绳索，入水不烂。
【皂荚】
味辛、咸。性温。无毒。禀受木气而兼有火、金之性而生，性质升浮，属阳。以柏实为引经使药。畏麦冬。
畏惧空青、人参、苦参。被丹砂所伏。即皂角。
主治风痹、死肌、邪气，风头流泪，通利九窍，杀灭精怪之物，治疗腹胀满，消食化谷，去除咳嗽，囊结，风口噤。
前论：李好古说，皂荚是厥阴经的药物，《活人书》治疗阴毒证，正气散中内服皂荚，是为了引入厥阴经。孙用和说，可作为外科要药，功效同皂荚，但更为锋锐，直达患处，溃散痈疽。
禁忌：缪希雍说，类似中风症状，若由阴虚火炎，煎熬成痰，热极生风，导致突然仆倒，不可立即使用。
炮制：李好古说，凡用皂荚，有蜜炙、酥炙、绞汁、烧灰等不同方法，各依方剂要求使用。
【西河柳】
又名柽柳。禀受阳春之气而生，性质升浮，属阳。
主治驴马血入肉中毒，用木片火炙熨烫患处，并煎煮汁液浸泡。（开宝本草）枝叶消除痞块，解酒毒，利小便。（李时珍）
[Haitongpi (Spatholobi Caulis)]
Taste: Bitter, Acrid. Nature: Neutral. Non-toxic. Born from the Yin Qi of wood; descending in action; Yang within Yin.
Indications: Mainly for Huoluan (cholera-like syndrome) and Zhong'e (sudden severe illness due to evil pathogens), chronic dysentery with red and white discharge, removing Ganic accumulation (childhood malnutrition), scabies, tinea, and toothache caused by worms. All are taken by decoction or used for mouth rinsing. Soaked in water for eye washing.
Meridian Tropism: Enters the Spleen and Stomach meridians. It is a product that dispels wind and drives out dampness. (Specifically acts on the Blood level, expels wind and kills parasites, can travel through collaterals to reach the disease site directly.)
Preceding Discussion: Su Song stated that ancient formulas often used it soaked in wine to treat unbearable pain in the waist and knees caused by Wind.
Contraindications: According to *Bencao Jing Shu* (Compendium of Materia Medica Explained): Contraindicated for lower back pain not caused by Wind-Dampness.
Processing: Su Song stated that this herb originates from Guangnan. The bark is white and tough, usable as rope, and does not rot in water.
[Zaojiao (Gleditsiae Fructus)]
Taste: Pungent, Salty. Nature: Warm. Non-toxic. Born from Wood Qi combined with Fire and Metal natures; ascending in action; Yang. Guided by Baishi (Cacumen Platycladi). Incompatible with Maidong (Ophiopogonis Radix).
Feared by Kongqing (Azurite), Renshen (Ginseng Radix et Rhizoma), Kushen (Sophorae Flavescentis Radix). Controlled by Dansha (Cinnabaris). This is Zaojiao (Soapberry).
Indications: Mainly for Fengbi (wind-bi syndrome), dead flesh, pathogenic factors, tearing from the head/wind-chill, unblocking the nine orifices, killing spirit entities, treating abdominal distension and fullness, digesting grains, relieving cough, scrotal knotting, and lockjaw due to wind.
Meridian Tropism: Enters the Lung and Large Intestine meridians. It is a product that unblocks orifices and searches for wind. (Can unblock upper and lower orifices.)
Preceding Discussion: Li Haogu stated that Zaojiao is a medicine of the Jueyin Liver channel. *Huoren Shu* uses it for Yindu (Yin toxicity); Zhengqi San includes it internally to guide the effect into the Jueyin channel. Sun Yonghe stated it serves as an important external surgical medicine. Its efficacy is similar to Zaojiao but more penetrating, reaching the lesion directly to suppurate and disperse carbuncles and sores.
Contraindications: According to *Bencao Jing Shu*: Contraindicated for symptoms resembling stroke caused by Yin deficiency with flaming fire, which boils fluids into phlegm, extreme heat generates wind, leading to sudden collapse. Do not use hastily.
Processing: Li Haogu stated that when using Zaojiao, there are differences such as honey-frying, lard-frying, juicing, and ashing. Use each according to the prescription requirements.
[Xihe Liu (Tamarici Cacumen)]
Also known as Chengliu. Born from the Qi of early spring; ascending in action; Yang.
Indications: Mainly for poison from donkey/horse blood entering the flesh. Apply hot wooden splints for moxibustion/heat therapy, and soak in decocted juice. (*Kaibao Bencao*) Branches and leaves eliminate epigastric fullness, resolve alcohol toxicity, and promote urination. (Li Shizhen)
Meridian Tropism: Enters the Heart, Lung, and Stomach meridians. It is a product that opens, ascends, and disperses. (Enters the Blood level to resolve Blood-level toxins.)
Preceding Discussion: Chen Zhongchun stated that in recent times, it is used as a divine dispersing agent for treating sand-rash (scarlet fever/rubella) where heat toxin cannot be excreted. The *Neijing* states, "What arrives at Shaoyin manifests as ulcers and rashes," which corresponds precisely to disorders of the skin and hair follicles.