雄黄、黄丹、同敷。
一小儿好吃粽，成腹痛。黄连、白酒药、为末，调服乃愈。
火之为病，其害甚大，其变甚速，其势甚彰，其死甚暴。何者？盖能燔灼焚焰，飞走狂越，消烁于物，莫
能御之。游行乎三焦虚实之两途∶曰君火也，犹人火也；曰相火也，犹龙火也。火性不妄动，能不违道于常，
以禀位听命营运造化，生存之机矣。夫人在气交之中，多动少静，欲不妄动，其可得乎。故凡动者皆属火。龙
火一妄行，元气受伤，势不两立。偏胜则病移他经，事非细故，动之极也，病则死矣。经所以谓一水不胜二火
之火，出于天造。君相之外，又有厥阴、脏腑之火，根于五志之内，六欲七情激之，其火随起。大怒则火起于
肝，醉饱则火起于胃，房劳则火起于肾，悲哀动中则火起于肺。心为君主，自焚则死矣。丹溪又启∶火出五脏
主病。曰∶诸风掉眩，属于肝火之动也。诸痛疮疡，属于心火之用也。诸气愤郁，属于肺火之升也。诸湿肿满，
属于脾火之胜也。经所谓一水不胜五火之火，出自人为。又考内经病机一十九条内举属火者五∶诸热瞀 ，皆
属于火；诸惊禁 ，如丧神守，皆属于火；诸气逆上，皆属于火；诸躁扰狂越，皆属于火；诸病跗肿疼酸惊骇，
皆属于火。而河间又广其说火之致病者甚多，深契内经之意。曰∶喘呕、吐酸、暴注下迫、转筋、小便混浊、
腹胀大鼓之有声、痈疽、疡疹、瘤气、结核、吐下霍乱、瞀郁、肿胀、鼻塞、鼻衄、血溢、血泄、淋闭、身热、
恶寒、战栗惊惑、悲笑谵妄、衄蔑血污之病，
皆少阳君火之火，乃真心小肠之气所为也。若瞀 暴喑、冒昧躁扰狂越、骂詈惊骇、跗肿酸痛、气逆上冲、禁
栗如丧神守、嚏呕、疮疡、喉哑、耳鸣，及聋、呕涌溢、食不下、目 不明、暴注、 、暴病、暴死，此皆
少阳相火之热，乃心包络三焦之气所为也。是皆火之变见于诸病也。谓为脉虚则浮大，实则洪数。药之所主，
各因其属。君火者，心火也，可以湿伏，可以水灭，可以直折，惟黄连之属可以制之。相火者，龙火也，不可
以湿折之，从其性而伏之，惟黄柏之属，可以降之。噫！泻火之法，岂止如此，虚实多端，不可不察。以脏气
司之∶如黄连泻心火；黄芩泻肺火；芍药泻脾火；柴胡泻肝火；知母泻肾火。此皆苦寒之味，能泻有余之火耳。
若饮食劳倦，内伤元气，火不两立，为阳虚之病。以甘温之剂除之，如黄 人参甘草之属。若阴微阳强，相火
炽盛，以乘阴位，日渐煎熬，为火虚之病；以甘寒之剂降之，如当归地黄之属。若心火亢极，郁热内实，为阳
强之病，以咸冷之剂折之，如大黄朴硝之属。若肾水受伤，其阴失守，无根之火，为虚之病，以壮水之剂制之，
如生地黄、玄参之属。若右肾命门火衰，为阳脱之病，以温热之剂济之，如附子干姜之属。若胃虚过食冷物，
抑遏阳气于脾土，为火郁之病，以升散之剂发之，如升麻干葛柴胡防风之属。不明诸此之类，而求火之为病，
施治何所根据。故于诸经，集略其说，略备处方之用，庶免实实虚虚之祸也。
Shengdi Huang (Rehmanniae Radix), Mutong (Akebiae Caulis), Jingjie (Schizonepetae Herba), and bitter herbs with exterior-releasing properties. Apply Bajiao You (Musa Sapientis Oil) to the affected area.
Xionghuang (Realgar) and Huangdan (Minium), applied externally together.
A child who frequently ate zongzi (sticky rice dumplings) developed abdominal pain. The condition was cured after administering a powder made of Huanglian (Coptidis Rhizoma) and Baijiu Yao (White Wine Medicament), mixed and taken orally.
Pathogenic fire causes great harm, changes rapidly, manifests prominently, and can lead to sudden death. Why? Because fire burns and scorches, flies and raves, consumes and erodes all things, and cannot be resisted. It travels through both deficiency and excess pathways: one is Jun Huo (Monarch Fire), akin to human fire; the other is Xiang Huo (Ministerial Fire), akin to dragon fire. The nature of fire does not move recklessly; if it does not deviate from the constant Dao, abides by its position, obeys orders, and operates to create and sustain life, this is the mechanism of survival. Humans exist within the intersection of Qi, moving more than resting. How can one avoid reckless movement? Therefore, all movements belong to fire. If Long Huo (Dragon Fire) moves recklessly, Yuan Qi (Original Qi) is injured, and the two are incompatible. If one side prevails excessively, the disease shifts to other meridians, which is no minor matter. At the extreme of movement, illness leads to death. The Classic states that "one water cannot overcome two fires," referring to fire arising from natural creation. Besides Jun Huo and Xiang Huo, there is also fire of Jueyin (Jueyin Meridian) and the Zang-Fu organs, rooted in the Five Emotions (Wu Zhi), stimulated by Six Desires and Seven Emotions, causing fire to arise spontaneously. Great anger causes fire to arise in the Liver; drunkenness and overeating cause fire to arise in the Stomach; sexual exhaustion causes fire to arise in the Kidney; sorrow affecting the interior causes fire to arise in the Lung. The Heart is the Monarch; if it burns itself, death ensues. Danxi further elucidated: Fire originates from the diseases of the Five Zang organs. He stated: All wind syndromes with tremors and vertigo belong to the movement of Liver Fire; all pain and sores/ulcers belong to the function of Heart Fire; all Qi stagnation and depression belong to the rising of Lung Fire; all dampness, swelling, and fullness belong to the predominance of Spleen Fire. The Classic's statement that "one water cannot overcome five fires" refers to fire arising from human activity. Furthermore, examining the Nineteen Pathogenesis Mechanisms in the *Nei Jing*, five are attributed to fire: all heat syndromes with mental confusion belong to fire; all convulsions and spasms, as if losing spiritual control, belong to fire; all rebellious Qi ascending belong to fire; all restlessness, agitation, mania, and wild behavior belong to fire; all conditions with edema on the dorsum of the foot, pain, soreness, fright, and alarm belong to fire. Liu Hejian expanded on the pathogenic effects of fire, deeply aligning with the *Nei Jing*. He stated: Panting, vomiting, acid regurgitation, acute diarrhea with tenesmus, muscle cramps, turbid urine, abdominal distension sounding like a drum upon percussion, carbuncles, ulcers, rashes, goiter, scrofula, vomiting and diarrhea with cholera-like symptoms, mental confusion and depression, swelling, nasal congestion, epistaxis, hematemesis, hematochezia, stranguria, retention of urine, fever, aversion to cold, shivering, fright, confusion, crying and laughing, delirium, and bloody discharges are all manifestations of Shaoyang Jun Huo (Shaoyang Monarch Fire), caused by the Qi of the True Heart and Small Intestine. If there is sudden mental confusion and aphasia, dizziness, restlessness, agitation, mania, wild behavior, cursing, fright, edema on the dorsum of the foot, pain and soreness, rebellious Qi ascending, spasms and shivering as if losing spiritual control, sneezing and vomiting, sores and ulcers, hoarseness, tinnitus, deafness, forceful vomiting, inability to eat, blurred vision, acute diarrhea, sudden illness, or sudden death, these are all heat syndromes of Shaoyang Xiang Huo (Shaoyang Ministerial Fire), caused by the Qi of the Pericardium and Sanjiao (Triple Burner). These are all variations of fire manifesting in various diseases. Pulse characteristics are floating and large when deficient, and surging and rapid when excess. The main actions of medicines depend on their specific affiliations. Jun Huo is Heart Fire; it can be subdued by dampness, extinguished by water, and directly reduced; only herbs like Huanglian (Coptidis Rhizoma) can control it. Xiang Huo is Dragon Fire; it cannot be reduced by dampness but must be subdued according to its nature; only herbs like Huangbai (Phellodendri Cortex) can descend it. Alas! Are methods of purging fire limited to this? Deficiency and excess present in many forms and must be carefully examined. Treating according to Zang organ Qi: Huanglian purges Heart Fire; Huangqin (Scutellariae Radix) purges Lung Fire; Shaoyao (Paeoniae Radix) purges Spleen Fire; Chaihu (Bupleuri Radix) purges Liver Fire; Zhimu (Anemarrhenae Rhizoma) purges Kidney Fire. These are all bitter-cold flavors capable of purging excessive fire. However, if dietary irregularities and fatigue injure Yuan Qi internally, and fire opposes righteousness, this is a Yang-deficiency disease. It should be treated with sweet-warm formulas, such as Renshen (Ginseng Radix et Rhizoma) and Gancao (Glycyrrhizae Radix et Rhizoma). If Yin is weak and Yang is strong, with Xiang Huo blazing and invading Yin positions, slowly consuming and simmering, this is a fire-induced deficiency disease; it should be treated with sweet-cold formulas to descend it, such as Danggui (Angelicae Sinensis Radix) and Dihuang (Rehmanniae Radix). If Heart Fire is extremely hyperactive with internal stagnant heat and excess, this is a Yang-excess disease; it should be treated with salty-cold formulas to reduce it, such as Dahuang (Rhei Radix et Rhizoma) and Puxiao (Natrii Sulfas). If Kidney Water is injured and Yin fails to hold fast, resulting in rootless fire, this is a deficiency disease; it should be treated with formulas that strengthen Water to control it, such as Shengdi Huang (Rehmanniae Radix) and Xuanshen (Scrophulariae Radix). If the Fire of the Gate of Vitality (Mingmen) in the right Kidney is declined, this is a Yang-collapse disease; it should be treated with warm-hot formulas to assist it, such as Fuzi (Aconiti Lateralis Radix Praeparata) and Ganjiang (Zingiberis Rhizoma). If Stomach deficiency leads to excessive consumption of cold foods, suppressing Yang Qi in the Spleen Earth, this is a Fire-stagnation disease; it should be treated with ascending-dispersing formulas to vent it, such as Shengma (Cimicifugae Rhizoma), Genge (Puerariae Radix), Chaihu (Bupleuri Radix), and Fangfeng (Saposhnikoviae Radix). Without understanding these categories, how can one seek the causes of fire diseases and have a basis for treatment? Therefore, I have collected and summarized theories from various meridians, briefly preparing prescriptions for use, to avoid the disaster of reinforcing excess and depleting deficiency.