(竹叶煎汤合生石蜜调服)
连翘(四两) 大黄 芒硝 生甘草(各二两) 栀仁 黄芩 薄荷(各一两)
大热目赤肿,此方主之。
大热,脏腑实火。目赤肿,本科险症。须以连翘、竹叶、荷叶之轻芬,升散于上,大黄、芒硝之猛烈,推荡
于中。黄芩、栀仁上清下行。生草、生蜜和中泥膈,症不变矣。经曰∶热淫于内,治以咸寒,佐以苦甘,此方之
谓与。
诗曰∶甘草大黄苏薄翘,条芩栀子化风硝,七般为散名凉膈,竹叶汤搀石蜜调。
龙胆草 当归 防风 羌活 山栀仁 芎 大黄(各等分)
青者,东方木神,于人为肝。泻青者,盖木忌蔽密,必伐去枝叶,始通风而不生虫。肝属木,忌血旺与气郁。
血旺则善怒,气郁则筋脉不舒。风火相循而起,发为头痛,目赤肿,翳障,热泪,坐卧不宁,本经谓之木火自焚。
不图急治,安望其条达。故用大黄、草龙胆、山栀仁苦寒下行,直入厥阴而折之。羌活、防风、芎 ,气雄能走,
从其性而升之。用当归者,以辛温润其燥,就以辛温补其血,是亦泻青之一法也。虽然青乃春阳发荣之色,化物
之源也。世医皆执东方常实,有泻无补,目病属肝,肝常有余,肝无补法诸说,起手便是平肝。不知五行之中,
惟木怀仁向荣,非如前
症,而用前药,譬以板斧伐条,标虽速去,本则随枯,来春杳无所生矣。春无所生,则夏长、秋收、冬藏者何物
乎?故余每救败症,从养阴益阳者居多。否则议和议泻,然终以益补收效。此何以故?盖病多假实真虚,而药只
有泻无补,饥肠寒骨,强自支持,因衣以绨袍,食以豆粥,犹久旱得雨,严寒出日,有不解其郁闷者乎。必曰肝
无补法,此门外汉子。凭卿用卿法,我自用我法也。
诗曰∶泻青莫漫防龙胆,羌活大黄当检点,至乃芎 栀子仁,症非如上任煎啖。
(用竹叶煎成的汤液调和生石蜜服用)
连翘(四两) 大黄 芒硝 生甘草(各二两) 栀子仁 黄芩 薄荷(各一两)
眼部大热、红肿,此方主治。
所谓“大热”,是指脏腑内的实火。“目赤肿”是眼科中的危重病症。必须使用连翘、竹叶、荷叶等气味轻清芬芳的药物,向上升散;配合大黄、芒硝等药性猛烈的药物,在中焦推荡积滞。黄芩、栀子仁既能清上焦之热,又能引热下行。生甘草和生蜂蜜能调和脾胃,防止药力伤及膈膜,从而使病情不再变化。《内经》说:“热邪蕴结于内,用咸寒之品治疗,辅以苦甘之味。”说的就是此方。
诗云:甘草、大黄、苏叶、连翘,黄芩、栀子、化风、芒硝,七味药制成散剂名为凉膈散,用竹叶汤冲服并调入石蜜。
青色对应东方,在五行中属木,在人体对应肝脏。“泻青”,意思是树木忌讳枝叶茂密遮蔽,必须砍伐去除多余的枝叶,才能使风气流通而不生虫害。肝属木,忌讳血气过旺和气机郁结。血气过旺则容易发怒,气机郁结则筋脉舒展不畅。风与火相互循行而发作,导致头痛、眼睛红肿、眼翳障蔽、热泪直流、坐卧不安,在本经中称为“木火自焚”。如果不立即紧急治疗,怎能期望其条达舒畅?因此使用大黄、龙胆草、山栀仁等苦寒性质的药物向下引导,直接入厥阴肝经以折抑火势。羌活、防风、川芎,气味雄烈善于走窜,顺应肝气升发的特性将其提升。使用当归的原因,是利用其辛温之性滋润燥热,并以辛温来补益血液,这也是“泻青”的一种方法。虽然青色是春季阳气生发荣盛的色泽,也是万物化生的源头。世俗医生都固执地认为东方(肝)常实,只有泻法没有补法;认为眼病属于肝,肝气常有余,肝没有补法,所以一着手就使用平肝潜阳的方法。他们不知道在五行之中,只有木具有仁爱向荣的特性,不像前述那种实证。如果针对这种情况使用前面的泻火药物,就像用板斧砍伐枝条,虽然表面症状迅速去除,但根本随之枯死,来年春天便没有任何生机了。春天没有生机,那么夏天的生长、秋天的收获、冬天的收藏又靠什么呢?所以我每次救治败证,大多从滋养阴液、补益阳气入手。否则即使讨论和解或泻下之法,最终也是通过补益才能见效。这是什么原因呢?因为疾病多表现为假实真虚,而药物只有泻法没有补法,会导致患者肠空骨寒,勉强支撑身体,这就好比给饥饿寒冷的人穿上厚袍、喂以豆粥,如同久旱逢雨、严寒见日,难道还会有不解开郁闷的吗?必定有人说“肝无补法”,这是门外汉的说法。任凭你们使用你们的方法,我自有我的治疗方法。
诗云:泻青不要漫不经心地使用龙胆草,羌活、大黄应当仔细斟酌,至于川芎、栀子仁,病症不同不能像前一方那样随意煎服。
(Administered by mixing with a decoction of Bambusae Folium and raw rock sugar.)
Forsythiae Fructus (Lianqiao, 连翘) [4 liang], Rheum Palmatum Radix et Rhizoma (Dahuang, 大黄), Natrii Sulfas (Mangxiao, 芒硝), Glycyrrhizae Radix et Rhizoma Raw (Sheng Gancao, 生甘草) [each 2 liang], Gardeniae Semen (Zhiren, 栀子仁), Scutellariae Radix (Huangqin, 黄芩), Menthae Haplocalycis Herba (Bohe, 薄荷) [each 1 liang].
This formula is indicated for severe heat in the eyes causing redness and swelling.
"Severe heat" refers to excess fire within the zang-fu organs. "Redness and swelling of the eyes" is a critical condition in ophthalmology. One must use light and aromatic herbs such as Forsythiae Fructus, Bambusae Folium, and Nelumbinis Folium to ascend and disperse upwards; combined with potent purgatives like Rheum Palmatum Radix et Rhizoma and Natrii Sulfas to push down stagnation in the middle jiao. Scutellariae Radix and Gardeniae Qing clear heat from above and guide it downward. Raw Glycyrrhizae Radix et Rhizoma and raw honey harmonize the spleen and stomach, preventing damage to the diaphragm, thus stabilizing the condition. The *Neijing* states: "When heat invades internally, treat with salty-cold substances, assisted by bitter-sweet ones." This describes this formula.
The poem reads: Glycyrrhiza, Rheum, Perilla, Forsythia, Scutellaria, Gardenia, wind-resolving agents, and Mirabilite; seven ingredients made into a powder named Liangge San, mixed with Bamboo Leaf Decoction and adjusted with rock sugar.
Gentianae Radix (Longdancao, 龙胆草), Angelicae Sinensis Radix (Danggui, 当归), Saposhnikoviae Radix (Fangfeng, 防风), Notopterygii Rhizoma et Radix (Qianghuo, 羌活), Gardeniae Semen (Zhiren, 栀子仁), Ligustici Chuanxiong Rhizoma (Chuanxiong, 川芎), Rheum Palmatum Radix et Rhizoma (Dahuang, 大黄) [equal parts].
The color green corresponds to the East, belongs to Wood in the Five Elements, and corresponds to the Liver in the human body. "Xieqing" (Draining Green) implies that trees dislike being overly dense and shaded; branches and leaves must be pruned so that wind can circulate and prevent pest infestation. The Liver belongs to Wood and dislikes excessive blood abundance and qi stagnation. Excessive blood leads to irritability; qi stagnation leads to unrelaxed sinews and vessels. Wind and fire circulate together, manifesting as headache, red and swollen eyes, visual obscurations (cataracts/pterygium), profuse tears, restlessness in sitting or lying down. In the classic texts, this is called "Wood and Fire self-immolating." If not treated urgently, how can one expect smooth flow? Therefore, bitter-cold herbs descending in action, such as Rheum Palmatum Radix et Rhizoma, Gentianae Radix, and Gardeniae Semen, are used to enter the Jueyin Liver channel directly to subdue the fire. Saposhnikoviae Radix, Angelicae Dahuricae Radix (Baizhi is implied by context but text says Qianghuo/Fangfeng/Xion which usually implies Chuanxiong here given 'Xiong' abbreviation), and Ligustici Chuanxiong Rhizoma have potent aromas and moving properties, ascending in accordance with the liver's nature. Angelicae Sinensis Radix is used because its acrid-warm nature moistens dryness and tonifies blood through its acrid-warm property; this is also a method of "Draining Green." Although green is the color of spring yang flourishing and the source of transformation, worldly physicians adhere to the theory that the East (Liver) is constantly full, having only draining methods without tonification; they believe eye diseases belong to the Liver, the Liver is often in excess, and there is no tonification method for the Liver, so they begin with calming the Liver. They do not know that among the Five Elements, only Wood possesses benevolence and flourishing vitality. Unlike the aforementioned excess conditions, using draining drugs here is like chopping branches with an axe; although the symptoms are quickly removed, the root withers, and nothing will grow in the coming spring. If spring has no growth, what will there be for summer's elongation, autumn's harvest, and winter's storage? Thus, when I rescue critical cases, I mostly nourish yin and tonify yang. Even if discussing harmonizing or draining methods, ultimately efficacy is achieved through tonification. Why is this? Because diseases often present as false excess and true deficiency. If medicines only drain without tonifying, the intestines become empty and bones cold, forcing the body to sustain itself. This is like dressing a hungry, cold person in thick robes and feeding them bean porridge, akin to rain after a long drought or sun emerging from severe cold; would their depression not be resolved? Those who insist "the Liver has no tonification method" are laymen outside the gate. Use your methods as you please; I will use mine.
The poem reads: Do not casually use Gentianae Radix for Draining Green; carefully consider Saposhnikoviae Radix and Rheum Palmatum Radix et Rhizoma. As for Ligustici Chuanxiong Rhizoma and Gardeniae Semen, do not brew and consume them indiscriminately as in the previous prescription.