海藏云∶夜热属阴，四顺饮之类，此血热在夜也。《脉经》云∶小肠有宿食，
尝暮发热，明日复止。此宿食夜热也。〔薛〕治一小儿亥子时发热，形气倦怠，面
黄懒食，流涎饮汤。用益黄散而愈。后复发，服前药及清热之剂，病发不时，嗜卧
露睛，作渴少食，大便频黄。此脾虚而肝木胜之，兼元气下陷也。用补中益气汤，
佐以地黄丸而愈。又治一小儿夜间发热腹胀。此脾虚肝盛。朝用五味异功散，夕用
四味肥儿丸，热止，乃朝用六味地黄丸，夕用异功散而痊。〔钱〕朱监簿子五岁，
夜发热，晓即如故。众医有作伤寒治者，有作热治者，以凉药解之不愈，其候多涎
而喜睡，他医以铁粉丸下涎，其病益甚，至五日，大引饮。钱曰不可下之，乃取白
术散一两，煎药汁三升，使任意取足服。朱生曰饮多不作泻否。钱曰无生水不作泻，
纵多，不足怪也，但不可下耳。朱生曰先治何病。钱曰止泻、治痰、退热、清神，
皆此药也。至晚服尽，钱视曰更可服三升，又煎白术散三升，服尽得稍愈，第三日
又服白术散三升，其子不渴无涎，又投阿胶散二服而安。〔汤〕风痰热，晚热早凉，
吃水无时，此候乃痰作潮而生风热，即宜金星丸下之，或气弱者不可下，宜夺命散
以控下涎，次服惺惺散，加南星、白附子。
四顺饮（见里热） 益黄散（见脾） 补中益气汤（见虚热） 地黄丸（见肾）
异功散（见吐泻） 四味肥儿丸（见疳） 白术散（见渴）
金星丸 治风热结聚，喉内痰鸣，喘粗咳嗽，面红腮肿，咽膈壅塞，发热狂躁多渴。
郁金末 雄黄（另研。各一分） 腻粉（半分） 巴豆（七枚，去油）
上为末，米醋糊丸，麻子大。薄荷腊茶下。
夺命散（见惊） 惺惺散（见痘）
四物二连汤 治血虚劳，五心烦热，昼则明了，夜则发热，胁肋并一身尽热，日晡
肌热。
当归 生地黄 白芍药 川芎 黄连 胡黄连（各等分）
上，水煎服。
Haizang stated: Night fever belongs to the Yin category; formulas such as Sishun Yin (Four-Obedience Decoction) can be used, which indicates blood heat manifesting at night. The *Mai Jing* (Pulse Classic) states: When there is retained food in the Small Intestine, fever often occurs in the evening and subsides by tomorrow morning. This is night fever caused by retained food. [Xue Ji] treated a child who developed fever during the Hai and Zi hours (9 PM to 1 AM), presenting with fatigue in form and Qi, yellow complexion, reluctance to eat, drooling, and a desire to drink hot liquids. The condition was cured using Yihuang San (Golden Yellow Powder). Later, the fever recurred; after taking the previous medicine and heat-clearing agents, the onset became irregular, accompanied by lethargy with eyes half-open, thirst, poor appetite, and frequent loose stools of yellow color. This indicated Spleen deficiency with Liver Wood overacting, combined with sinking of Yuan Qi (Original Qi). It was cured using Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction), assisted by Dihuang Wan (Rehmannia Pill). He also treated another child with night fever and abdominal distension, diagnosed as Spleen deficiency and Liver excess. In the morning, Wuyi Yigong San (Five-Ingredient Extraordinary Efficacy Powder) was administered, and in the evening, Siwei Fei'er Wan (Four-Ingredient Fattening Child Pill); once the fever ceased, the regimen changed to Liuwei Dihuang Wan (Six-Ingredient Rehmannia Pill) in the morning and Yigong San in the evening, leading to recovery. [Qian Yi] The son of Supervisor Zhu, aged five, had night fever that resolved upon dawn. Many physicians treated it as Taiyang disease or Heat syndrome; cooling herbs failed to resolve it. The symptoms included excessive salivation and drowsiness. Other physicians used Tifen Wan (Iron Powder Pill) to reduce phlegm-saliva, but the condition worsened. By the fifth day, the child exhibited extreme thirst and drinking. Qian Yi said purgation was contraindicated. He took Baizhu San (Atractylodes Macrocephala Powder), one tael, decocted it into three sheng of liquid, allowing the child to drink as much as desired. Mr. Zhu asked, "Will drinking too much cause diarrhea?" Qian Yi replied, "Without raw water, diarrhea will not occur. Even if he drinks a lot, it is not surprising; the key is to avoid purgation." Mr. Zhu asked, "Which disease should be treated first?" Qian Yi answered, "Stopping diarrhea, treating phlegm, reducing fever, and clearing the spirit are all addressed by this medicine." By evening, after finishing the dose, Qian Yi observed and said another three sheng could be taken. Another three sheng of Baizhu San were decocted and consumed, resulting in slight improvement. On the third day, another three sheng of Baizhu San were given; the child no longer felt thirsty nor had phlegm-saliva. Two doses of Ejiao San (Donkey-Hide Gelatin Powder) were then administered, bringing stability. [Tang] Wind-phlegm Heat syndrome presents with evening fever and morning coolness, with constant desire for water. This pattern arises from phlegm transforming into tidal waves generating wind-heat. Jinxing Wan (Venus Star Pill) should be used immediately for purgation. If Qi is weak, purgation is contraindicated; Duoming San (Life-Restoring Powder) should be used to control and expel phlegm-saliva, followed by Xingxing San (Awakening Powder) with Tianxing (Arisaema Cum Bile) and Baifuzi (Typhonii Rhizoma).
Sishun Yin (See Interior Heat chapter) Yihuang San (See Spleen chapter) Buzhong Yiqi Tang (See Deficiency Heat chapter) Dihuang Wan (See Kidney chapter) Yigong San (See Vomiting and Diarrhea chapter) Siwei Fei'er Wan (See Infantile Malnutrition chapter) Baizhu San (See Thirst chapter)
Jinxing Wan Treats wind-heat accumulation, phlegm rales in the throat, rapid breathing and coughing, red face and swollen cheeks, obstruction in the throat and diaphragm, fever, mania, restlessness, and excessive thirst.
Ingredients: Turmeric powder (Yujin Mo), Realgar (Xionghuang, ground separately, 1 fen each), Calomel (Nifen, 0.5 fen), Croton Seed (Badou, 7 seeds, oil removed).
Preparation: Grind all ingredients into powder, bind with rice vinegar paste into pills the size of hemp seeds. Administer with mint and aged tea infusion.
Duoming San (See Convulsion chapter) Xingxing San (See Smallpox chapter)
Siwu Erlian Tang Treats Blood-deficiency consumptive disease, heat sensation in the five centers (palms, soles, and chest), clear consciousness during the day, fever at night, heat in the hypochondrium and throughout the body, and muscle fever in the late afternoon (Shen hour).
Ingredients: Angelica Sinensis Radix (Danggui), Rehmanniae Radix Recens (Sheng Dihuang), Paeoniae Radix Alba (Baishaoyao), Ligusticum Chuanxiong Rhizoma (Chuanxiong), Coptidis Rhizoma (Huanglian), Picrorhizae Rhizoma (Huhuanglian) (equal parts).
Administration: Decoct in water and take orally.