黄连泻心火
木通泻小肠火
黄芩泻肺火（栀子佐之）
黄芩泻大肠火
柴胡泻肝火（黄连佐之）
柴胡泻胆火（亦以黄连佐之）
白芍药泻脾火
石膏泻胃火
知母泻肾火
黄柏泻膀胱火
柴胡泻三焦火（黄芩佐之）
以上诸药，各泻其火，不惟止能如此，更有治病，合为
君、合为臣处，详其所宜而用，勿执一也。
天有阴阳，风寒暑湿燥火，三阴、三阳上奉之。
温凉寒热，四气是也，皆象于天。温、热者，天之
阳也。凉、寒者，天之阴也。此乃天之阴阳也。
地有阴阳，金木水火土，生长化收藏下应之。
辛甘淡酸苦咸，五味是也，皆象于地。辛甘淡者，地之阳也。酸苦咸者，地之阴也。此
乃
地之阴阳也。
味之薄者，为阴中之阳，味薄则通，酸、苦、咸、平是也。味之浓者，为阴中之阴，味
浓则泄，酸、苦、咸、寒是也。气之浓者，为阳中之阳，气浓则发热，辛、甘、温、热是也
。气之薄者，为阳中之阴，气薄则发泄，辛、甘、淡、平、凉、寒是也。
轻清成象（味薄，茶之类）本乎天者亲上。
重浊成形（味浓，大黄之类）本乎地者亲下。
气味辛甘发散为阳，酸苦涌泄为阴。
清阳发腠理，清之清者也。
清阳实四肢，清之浊者也。
浊阴归六腑，浊之浊者也。
浊阴走五脏，浊之清者也。
黄连能清泻心火（心脏之火）
木通能清泻小肠火
黄芩能清泻肺火（栀子辅助它）
黄芩能清泻大肠火
柴胡能清泻肝火（黄连辅助它）
柴胡能清泻胆火（也用黄连辅助它）
白芍药能清泻脾火
石膏能清泻胃火
知母能清泻肾火
黄柏能清泻膀胱火
柴胡能清泻三焦火（黄芩辅助它）
以上这些药物，各自清泻其对应的火邪，不仅仅只能做到这一点，还有治疗疾病时，配合成为君药、配合成为臣药的情况，要详细斟酌适宜的用法来使用，不要拘泥于一种定法。
天有阴和阳，风、寒、暑、湿、燥、火这六气，由三阴经和三阳经在上承接奉养。
温、凉、寒、热，这是四气，都效法于天。温、热，属于天的阳。凉、寒，属于天的阴。这就是天的阴阳。
地有阴和阳，金、木、水、火、土这五行，在下方应合生长化收藏的变化。
辛、甘、淡、酸、苦、咸，这是五味，都效法于地。辛、甘、淡，属于地的阳。酸、苦、咸，属于地的阴。这就是地的阴阳。
气味薄的，属于阴中之阳，味薄则能通利，如酸、苦、咸、平性的药。气味浓的，属于阴中之阴，味浓则能泄下，如酸、苦、咸、寒性的药。气味浓的，属于阳中之阳，气浓则能发热，如辛、甘、温、热性的药。气味薄的，属于阳中之阴，气薄则能发散透达，如辛、甘、淡、平、凉、寒性的药。
轻清之物形成象（味薄的，如茶之类），源于天的属性亲近向上。
重浊之物形成形（味浓的，如大黄之类），源于地的属性亲近向下。
气味辛甘具有发散作用的属于阳，酸苦具有涌吐泄下的作用属于阴。
清阳之气发越于腠理，是清中之清者。
清阳之气充实于四肢，是清中之浊者。
浊阴之气归于六腑，是浊中之浊者。
浊阴之气走注于五脏，是浊中之清者。
Coptidis Rhizoma (Huanglian) drains Heart Fire.
Akebiae Caulis (Mutong) drains Small Intestine Fire.
Scutellariae Radix (Huangqin) drains Lung Fire (assisted by Gardeniae Fructus).
Scutellariae Radix (Huangqin) drains Large Intestine Fire.
Bupleuri Radix (Chaihu) drains Liver Fire (assisted by Coptidis Rhizoma).
Bupleuri Radix (Chaihu) drains Gallbladder Fire (also assisted by Coptidis Rhizoma).
Paeoniae Radix Alba (Baishao) drains Spleen Fire.
Gypsum Fibrosum (Shigao) drains Stomach Fire.
Anemarrhenae Rhizoma (Zhimu) drains Kidney Fire.
Phellodendri Cortex (Huangbai) drains Bladder Fire.
Bupleuri Radix (Chaihu) drains Sanjiao Fire (assisted by Scutellariae Radix).
The above-mentioned drugs each drain their respective Fires. They are not limited to this function alone; there are also instances in treating diseases where they combine to serve as the Sovereign drug or the Minister drug. One should carefully consider the appropriate usage and not adhere rigidly to a single method.
Heaven possesses Yin and Yang. The Wind, Cold, Summer Heat, Dampness, Dryness, and Fire (Six Qi) are received and supported from above by the Three Yin and Three Yang meridians.
Warmth, Coolness, Cold, and Heat constitute the Four Qi, all mirroring Heaven. Warmth and Heat belong to Heaven's Yang. Coolness and Cold belong to Heaven's Yin. This is the Yin and Yang of Heaven.
Earth possesses Yin and Yang. Metal, Wood, Water, Fire, and Earth (Five Elements) respond from below to Growth, Transformation, Harvest, and Storage.
Acrid, Sweet, Pungent, Sour, Bitter, and Salty constitute the Five Flavors, all mirroring Earth. Acrid, Sweet, and Pungent belong to Earth's Yang. Sour, Bitter, and Salty belong to Earth's Yin. This is the Yin and Yang of Earth.
Those with thin flavors belong to Yin within Yang; thin flavors promote unblocking, such as Sour, Bitter, Salty, and Neutral substances. Those with thick flavors belong to Yin within Yin; thick flavors promote purging, such as Sour, Bitter, Salty, and Cold substances. Those with strong aromas belong to Yang within Yang; strong aromas generate heat, such as Acrid, Sweet, Warm, and Hot substances. Those with weak aromas belong to Yang within Yin; weak aromas promote dispersal and venting, such as Acrid, Sweet, Pungent, Neutral, Cool, and Cold substances.
Light and clear substances form images (thin flavors, like Tea); those originating from Heaven tend to move upward.
Heavy and turbid substances form shapes (thick flavors, like Rheum Palmatum/Da Huang); those originating from Earth tend to move downward.
Acrid and Sweet flavors that disperse and diffuse are Yang; Sour and Bitter flavors that induce vomiting and purging are Yin.
Clear Yang issues into the Couli (interstices), being the Clear among the Clear.
Clear Yang fills the four limbs, being the Turbid among the Clear.
Turbid Yin returns to the Six Fu organs, being the Turbid among the Turbid.
Turbid Yin travels to the Zang organs, being the Clear among the Turbid.