夫瘅疟者。由肺系有热。气盛于身。厥逆上冲。气实而不能外泄。因所用力。腠理开舒
风
故但热不寒。气内藏于心。而外舍于分肉。令人消铄脱肉。故名曰瘅疟。其状热而不寒。阴
气绝。阳气独发。则少气烦 。手足热而呕也。
治瘅疟。但热不寒。呕逆不下食。宜服香豉饮子方。
香豉（半合） 葱白（七茎切） 恒山〔二（三）分〕 川升麻（一两） 鳖甲（一两
半涂醋
炙
令黄
上件药。锉碎。都以水二大盏半。煎至一盏半。去滓。不计时候。分为三服。
一日服尽。
又方。
恒山（一分） 甘草（一分生用） 地骨皮（一分） 生铁（一斤打碎如棋子大）
上件药。细锉。都以水一（二）大盏。于星月下浸一夜。横刀一口。安在药上。早晨煎
取
一盏。去滓。空腹分为二服。重者不过两剂瘥。
治瘅疟。发时大渴。寒热不定方。
砒霜（半两细研） 绿豆（半两） 川大黄（一两锉碎微炒） 麝香（一分细研）
上件药。捣罗为末。入研了药令匀。炼蜜和丸。如梧桐子大。夜露一宿。发日平旦。以
冷水下一丸。临发前再服一丸。忌食热物。
治瘅疟。发作不定。但热不寒。宜服此方。
恒山（一两） 桃仁（一两汤浸去皮尖双仁麸炒微黄） 黄丹（一两炒令紫色） 香豉
（一合
炒干）
上件药。捣罗为末。炼蜜和丸。如梧桐子大。每至发日。空心煎桃仁汤下十丸。于发时
前再一服。
又方。
朱砂（一分） 砒霜（一分） 马牙硝（一分） 猢狲头骨（一分末） 麝香（一钱）
上件药。相和。研令匀细。以醋煮面糊和丸。如绿豆大。于发时前。以冷生姜茶下二丸。
忌食热物。
又方。
地黄汁（一升） 砒霜（一两细研） 蜡（半两）
上件药。将地黄汁于瓷器中。以慢火煎。入砒霜。不住手搅。煎如膏。次入蜡又煎。令
消。丸如绿豆大。每至发日。空心。以井华水下三丸。未瘥。发前更服三丸。忌食热物。
又方。
砒霜（一分细研） 甘草末（半两）
上件药。都研令匀。以粟米饭和丸。如绿豆大。每未发时。及空心。以井华水下二丸。
忌食热物。
瘅疟（一种以高热为主要特征的疟疾），是由于肺系有热邪，导致体内气机亢盛。气机厥逆上冲，因气实而不能向外宣泄，加之用力时腠理（皮肤毛孔及纹理）开泄，感受风邪，所以只发热而不恶寒。病气内藏于心，外舍于分肉（肌肉间隙），使人肌肉消瘦脱失，因此称为瘅疟。其症状表现为发热而不恶寒，阴气衰竭，阳气独发，出现气短、心烦、手足发热以及呕吐等症状。
治疗瘅疟，症见但热不寒、呕吐逆气、不能进食者，适宜服用香豉饮子方。
药材：香豉（半合）、葱白（七茎，切段）、恒山（二至三分）、川升麻（一两）、鳖甲（一两半，涂醋炙令黄色）。
以上药物，锉碎，共用水两大盏半，煎煮至一盏半，去渣滓。不拘时候，分为三服，一日服完。
又一方。
药材：恒山（一分）、甘草（一分，生用）、地骨皮（一分）、生铁（一斤，打碎如棋子大小）。
以上药物，细锉，共用水一或二大盏，在星月下浸泡一夜。横放一口刀在药上，早晨煎取一盏，去渣滓。空腹分为两服。重症者不超过两剂即可痊愈。
治疗瘅疟，发作时大渴，寒热不定者。
药材：砒霜（半两，细研）、绿豆（半两）、川大黄（一两，锉碎微炒）、麝香（一分，细研）。
以上药物，捣罗为末，加入已研好的药粉混合均匀。用炼蜜和丸，如梧桐子大。夜间露置一宿，发病当日清晨，用冷水送下一丸。临发作前再服一丸。忌食热物。
治疗瘅疟，发作时间不定，但热不寒者，适宜服用此方。
药材：恒山（一两）、桃仁（一两，汤浸去皮尖双仁，麸炒微黄）、黄丹（一两，炒令紫色）、香豉（一合，炒干）。
以上药物，捣罗为末，炼蜜和丸，如梧桐子大。每逢发病日，空腹煎桃仁汤送下十丸，在发作时前再服一次。
又一方。
药材：朱砂（一分）、砒霜（一分）、马牙硝（一分）、猢狲头骨（一分，研末）、麝香（一钱）。
以上药物，混合，研磨令匀细。用醋煮面糊和丸，如绿豆大。在发作时前，用冷生姜茶送下二丸。忌食热物。
又一方。
药材：地黄汁（一升）、砒霜（一两，细研）、蜡（半两）。
以上药物，将地黄汁放入瓷器中，用慢火煎，加入砒霜，不停搅拌，煎成膏状。其次加入蜡再次煎煮，令其融化。丸如绿豆大。每逢发病日，空腹，用井华水（清晨第一次打的井水）送下三丸。若未愈，发作前再服三丸。忌食热物。
又一方。
药材：砒霜（一分，细研）、甘草末（半两）。
以上药物，都研磨令匀。用粟米饭和丸，如绿豆大。每次在未发作时，及空腹时，用井华水送下二丸。忌食热物。
Dan Nue (a type of malaria characterized by high fever) arises from heat in the lung system, causing excessive qi throughout the body. The qi rebels and rushes upward; due to excess qi that cannot be vented externally, combined with the opening of Couli (skin pores and interstices) during exertion and exposure to Wind pathogen, it manifests as fever without chills. The pathogenic qi resides internally within the Heart and externally in the Fenrou (muscle spaces), causing emaciation and wasting of flesh, hence named Dan Nue. Its presentation includes fever without chills, exhaustion of Yin Qi, solitary flare-up of Yang Qi, shortness of breath, irritability, heat in the hands and feet, and vomiting.
For treating Dan Nue with symptoms of fever without chills, vomiting, rebellious qi, and inability to eat, Xiang Chi Yin Zi Fang is indicated.
Ingredients: Fermented Soybean (Ban He), Scallion White (Seven stalks, cut), Hengshan (Two to Three fen), Chuan Shengma (One liang), Bie Jia (One and a half liang, coated with vinegar and roasted until yellow).
The above herbs are coarsely chopped. Combine with two and a half large bowls of water, decoct until one and a half large bowls remain. Strain and discard the dregs. Take at any time, divided into three doses, consumed within one day.
Another prescription.
Ingredients: Hengshan (One fen), Gancao (One fen, raw), Digupi (One fen), Raw Iron (One jin, crushed into pieces the size of chessmen).
The above herbs are finely chopped. Combine with one or two large bowls of water, soak overnight under the starlight. Place a knife horizontally over the herbs. In the morning, decoct to obtain one bowl. Strain and discard the dregs. Divide into two doses for consumption on an empty stomach. Severe cases may resolve within no more than two courses of treatment.
For treating Dan Nue with intense thirst during attacks and irregular alternating chills and fever.
Ingredients: Pishuang (Half liang, finely ground), Moutou Bean (Half liang), Chuan Dahuang (One liang, coarsely chopped and lightly stir-fried), Shexiang (One fen, finely ground).
The above herbs are pounded and sieved into powder. Mix thoroughly with the previously ground ingredients. Form pills with refined honey, sized like Sophora japonica seeds. Expose overnight to the dew. On the day of attack, take one pill with cold water at dawn. Take another pill just before the onset of symptoms. Avoid hot foods.
For treating Dan Nue with irregular attack times but presenting only fever without chills, this prescription is suitable.
Ingredients: Hengshan (One liang), Tao Ren (One liang, soaked in water, skin and pointed ends removed, double-kernel, bran-roasted until slightly yellow), Huangdan (One liang, roasted until purple), Xiang Chi (One he, stir-fried until dry).
The above herbs are pounded and sieved into powder. Form pills with refined honey, sized like Sophora japonica seeds. On each day of attack, take ten pills with decoction of Tao Ren on an empty stomach, and take another dose just before the onset of symptoms.
Another prescription.
Ingredients: Zhusha (One fen), Pishuang (One fen), Mayaxiao (One fen), Sun Tou Gu (Monkey head bone, One fen, powdered), Shexiang (One qian).
Mix the above ingredients and grind finely. Form pills with paste made from flour boiled in vinegar, sized like mung beans. Take two pills with cold ginger tea just before the onset of symptoms. Avoid hot foods.
Another prescription.
Ingredients: Dihuang Zhi (Rehmannia juice, One sheng), Pishuang (One liang, finely ground), Beeswax (Half liang).
Place the Dihuang Zhi in a porcelain vessel and simmer slowly. Add Pishuang and stir constantly until it forms a paste. Then add beeswax and continue heating until melted. Form pills sized like mung beans. On the day of attack, take three pills on an empty stomach with Jinghua Water (first drawn well water in the morning). If not cured, take three more pills before the next attack. Avoid hot foods.
Another prescription.
Ingredients: Pishuang (One fen, finely ground), Gancao Mo (Licorice powder, Half liang).
Grind all ingredients uniformly. Form pills with millet rice, sized like mung beans. Take two pills at the time of non-onset and on an empty stomach, administered with Jinghua Water. Avoid hot foods.