夫疟,犹酷疟之疟也。以夏伤酷暑而成 疟也,又有
气之积也。多在左胁之下,状如覆杯,是为 疟,犹
夏伤于暑而为疟,何后世之医者,皆以脾寒治之?世医既不知邪热蓄积之深为寒战,遂为寒
战所惑;又不悟邪热入而后出于表,发为燥渴,遂为交争所惑。相传以姜、附、硫黄、平胃、
异功散、交解饮子治之,百千之中,幸其一效。执以为是,至使父子兄弟相传。及其疟之甚
者,则归之祟怪,岂可不大笑耶?《内经》拘于鬼神者,不可与言至德。何世俗之愚而难化
也?又或因夏日饮冷过常,伤食生硬、瓜果、梨枣之属,指为食疟,此又非也。岂知《内经》之论则
不然。夏伤于暑,遇秋之风,因劳而汗,玄府受风,复遇凄怆之水,风闭而不出,舍于肠胃之外,与
荣卫并行,昼行于阳,夜行于阴。邪热浅,则连日而作;邪热深,则间日而作;并入于里则
热;并入于表则寒。若此而论,了不干于脾。
后世论药,如此之差误也。以时言之,治平之
时,常疟病少;扰攘之时,常疟病多。治平之时,虽用砒石、辰砂,有毒之药治之,亦能取
效。缘治平之时,其民夷静,故虽以热攻热,亦少后患。至于扰攘之时,其民劳苦,不可遽用
大毒、大热之药。若以热攻热,热甚则转为吐血、泄血、痈疽、疮疡、呕吐之疾。盖扰攘之
时,政令烦乱,徭役纷冗,朝戈暮戟,略无少暇,内火与外火俱动,在侯伯官吏尤甚,岂可与夷静之
人,同法而治哉?余亲见泰和六年丙寅,征南师旅大举,至明年军回。是岁瘴疠杀人,莫
知其数,昏瞀懊 ,十死八九,皆火之化也。次岁,疟
病大作,侯王官吏,上下皆病,轻者旬月,甚者弥年。夫富贵之人,劳心役智,不可骤用砒石
大毒之药,止宜先以白虎汤加人参小柴胡汤、五苓散之类,顿服立解。或不愈者,可服神佑
丸减用神芎等。甚者可大、小承气汤下之,五、七行,或十余行,峻泄夏月积热暑毒之气。此
药虽泄而无损于脏腑,乃所以安脏腑也。次以桂苓甘露散、石膏知母汤、大、小柴胡汤、人参柴
胡饮子,量虚实加减而用之。此药皆能治寒热往来,日晡发作,与治伤寒,其法颇同。更不愈者。以
常山散吐之,无不愈者。
余尝用张长沙汗、下、吐三法,愈疟极多。大忌错作脾寒,用暴热
之药治之。纵有愈者,后必发疮疽、下血之病,不死亦危。余自先世,授以医方,至于今日,五
十余年,苟不谙练,岂敢如是决也!又尝观刺疟论五十
九刺,一刺则衰,再刺则去,三刺则已。会陈下有病疟二年不愈者,止服温热之剂,渐至
衰羸,命予药之。余见其羸,亦不敢便投寒凉之剂,乃取《内经·刺疟论》详之曰∶诸疟不
已,刺十指间出血。正当发时,余刺其十指出血,血止而寒热立止。咸骇其神,余非炫术。窃
见晚学之人,不考诰典,谬说鬼疾,妄求符 ,祈祷辟匿,法外旁寻,以致病患迁延危殆。
疟病除
岚瘴一、二发必死,其余五脏六腑疟皆不死,如有死者,皆方士误杀之也。或曰∶汝言疟因于
暑者,春发之疟,亦伤暑乎?余曰∶此疟最深。何哉?暑伏于秋冬而不发,至春始发,
此疟之深者。《内经·气交变大论》∶岁火太过,炎暑流行,金肺受邪。启玄子云∶火不以
德,邪害于肺金也。故金肺先病,以金气不及,故为病。又《经》曰∶岁火太过,大热先发,故民病
疟。少气咳喘,血溢,血注下,嗌燥,耳聋中热,肩背热。上应荧惑星,见则山泽燔燎,雨乃不降,烁
石消金,涸泉焦草,火星大而明见。注曰∶火无德令,纵热害金,水复制心,故心火自病。
荧惑见则酷法大,故疟常与酷吏之政并行。或酷政行于先,而疟气应于后;或疟气行于先
,而酷政应于后。昔人有诗云∶大暑去酷吏。此言虽不为医设,亦于医巫之旨,有以暗相符
者也。以前人论疟者,未尝及于此,故予发之。及知圣人立疟之名,必有所谓云。
Malaria (Nue, 疟) is akin to the severe form of malaria. It arises from summer-heat injury during the summer season, accompanied by the accumulation of pathogenic factors. This accumulation typically occurs below the left hypochondrium, resembling an inverted cup, which constitutes "malaria." Since it results from summer-heat injury leading to malaria, why do later physicians treat it as spleen-cold? Ignorant physicians fail to recognize that deep accumulation of pathogenic heat causes chills (Han Zhan, 寒战), thus being confused by this symptom; they also fail to comprehend that after pathogenic heat enters deeply and then emerges to the exterior, causing dryness and thirst (Zao Ke, 燥渴), they are misled by the struggle between righteous qi and pathogens. They pass down treatments using dried ginger (Ganjiang, 干姜), prepared aconite (Fuzi, 附子), sulfur (Liuhuang, 硫黄), Pingwei San (Stomach Harmonizing Powder), Yigong San (Extraordinary Efficacy Powder), and Jiaoxie Yinzi (Interacting Decoction). Among thousands of cases, one might occasionally succeed. Clinging to this as correct, fathers and sons, brothers, pass it down through generations. When malaria becomes severe, they attribute it to malevolent spirits, which is truly laughable. The *Neijing* states: "One who is bound by ghosts and spirits cannot be spoken to regarding the highest virtues." How foolish and unteachable the common people are! Some attribute it to excessive consumption of cold drinks in summer or damage from raw, hard foods like melons, pears, and dates, calling it "food malaria," which is also incorrect. Does one not know that the *Neijing* does not argue this way? Summer-heat injury, combined with autumn wind, sweating due to exertion, wind entering the xuankou (sweat pores, Xuanfu, 玄府), and subsequent exposure to chilling water, causes wind closure preventing expulsion. The pathogen resides outside the intestines and stomach, moving alongside Ying and Wei qi, traveling through Yang during the day and Yin at night. If pathogenic heat is shallow, it manifests daily; if deep, every other day. If it merges inward, there is fever; if outward, chills. Thus discussed, it has nothing to do with the spleen.
Later discussions on medicine contain such significant errors. Temporally, in times of peace, ordinary malaria cases are few; in turbulent times, they are many. In peaceful eras, even toxic drugs like realgar (Pishi, 砒石) and cinnabar (Chensha, 辰砂) can be effective because the populace is tranquil, so treating heat with heat rarely causes aftermath issues. In turbulent times, when people suffer labor and hardship, one must not abruptly use highly toxic or hot drugs. Using heat to treat heat may exacerbate heat, leading to hematemesis, hematochezia, carbuncles, sores, vomiting, etc. Turbulent times feature chaotic governance, heavy corvée, constant warfare, leaving no rest. Internal fire and external fire activate simultaneously, especially among nobles and officials. How can they be treated the same as tranquil people? I witnessed in the Bingyin year of Taihe 6th year, when southern campaigns were launched, returning the next year. That year, pestilence killed countless people, many dying of dizziness and oppression, nine out of ten deaths caused by fire transformation. The following year, malaria erupted widely among nobles and officials, lasting weeks for mild cases, over a year for severe ones. Wealthy individuals, straining their minds, should not suddenly use highly toxic drugs like realgar. Instead, start with Baihu Tang plus Ginseng, Xiaochaihu Tang, or Wuling San, taken in one dose for immediate relief. If ineffective, try Shenyu Wan reduced dosage or Shenxiong Wan. For severe cases, use Dachengqi Tang or Xiaochengqi Tang to purge, resulting in five to seven or more bowel movements, vigorously draining summer accumulated heat and toxicity. These purgatives drain without damaging zang-fu organs, thereby stabilizing them. Subsequently, use Guiling Ganlu San, Shigao Zhimu Tang, Da Chaihu Tang, Xiao Chaihu Tang, or Renshen Chaihu Yinzi, adjusted for deficiency or excess. These treat alternating chills and fever, afternoon exacerbations, similar to shaoyang syndrome treatment in Cold Damage. If still ineffective, induce vomiting with Changshan San, which invariably succeeds.
I have used Zhang Zhongjing’s methods of sweating, purging, and vomiting to cure many malaria cases. One must strictly avoid misdiagnosing it as spleen-cold and using violent hot drugs. Even if cured, carbuncles or bleeding disorders will likely follow, endangering life. My family has transmitted medical prescriptions for over fifty years. Without thorough mastery, how dare I make such definitive judgments? I also studied the Fifty-Nine Acupoints for Malaria from the *Needling Malaria* chapter: one needling reduces severity, two removes the pathogen, three cures it. A patient in Chenxia suffered from malaria for two years, taking only warm herbs until emaciated. Seeing his weakness, I hesitated to use cold/cool herbs immediately. Consulting the *Neijing*, I noted: "For persistent malaria, prick the ten fingers to bleed." At the onset of attack, I pricked his ten fingers. Bleeding stopped, and chills/fever ceased instantly. People marveled at the efficacy, but I merely applied technique. I see young scholars ignoring classics, blaming ghosts, seeking talismans, praying, and using unorthodox methods, prolonging patients' suffering. Except for specific miasma types where death is inevitable after one or two attacks, most organ-related malaria is curable; deaths are usually due to physician error. Someone asked: "If malaria stems from summer-heat, what about spring-onset malaria?" I replied: "This is the deepest type. Summer-heat lies dormant in autumn/winter, manifesting in spring." The *Neijing·Qi Jiao Bian Da Lun* states: "Excessive fire leads to widespread heat, injuring lung metal." Qixuanzi commented: "Fire lacking virtue harms lung metal." Thus lung disease precedes due to metal deficiency. Also: "Excessive fire causes early great heat, leading to malaria, shortness of breath, cough, asthma, bleeding, throat dryness, deafness, internal heat, shoulder/back heat." This corresponds to the Mars star (Yinghuo, 荧惑); its appearance brings drought and fire. Annotations explain: Fire harming metal triggers water counteracting heart fire, causing heart pathology. Mars appearing signifies harsh laws; thus malaria parallels cruel governance. Either cruel policy precedes malaria, or vice versa. Ancient poetry says: "Great heat drives away cruel officials." Though not medical, it aligns with medical principles. Previous authors omitted this, so I elucidate it. The sage's naming of malaria implies profound meaning.