热如潮水来及时。初出见之并无疵。出尽若还遇潮热。退阳益阴妙方施。
潮热虽然无重轻。初出见之不须惊。出尽收后如潮热。急以四物益其阴。
潮热者。一日至晚一度。如潮水之及时而来。不失其信也。麻疹初出。多见此候。若出尽及收
后见之。此因气血虚弱而然。宜退阳益阴为主。以四物汤（见二十五条）加人参治之。
麻发于心肺受先。火甚津枯生口干。泻心清肺多奇效。治不违时病早安。
渴属肺胃热盛候。唇口如丹发渴时。清金泻火生津液。治分虚实两般治。
麻症如焚饮水饶。炎邪未许一杯浇。咽喉干燥心家热。津液干枯胃脘焦。
渴乃肺胃两经热盛之候。唇口必红。若唇口如丹。是麻发渴之候也。此因内热所致。火甚津
枯。故作口干。治当泻火、清金、生津。然当审察虚实而治之。若二便结涩。则为热甚。宜用清热
凉利之剂。以门冬甘露饮。去甘草主之。若二便清利。唇口淡而不红、而但渴者。此必过用寒凉之
药。损伤中气与气血所致。脾虚不生津液而渴也。以七味白术散去木香。以山药易白术。加粳米
主之。初热作渴者。以白虎汤（见二十六条）去甘草、粳米。加麦冬、天花粉、牛蒡子、连翘治之。或
以葛根麦门冬散去人参、升麻、赤芍、甘草。加天花粉、连翘、牛蒡子治之。渴甚者。以黄连解毒汤
（见第二条）去甘草、桔梗主之。出现之时渴者。以白虎汤（见二十六条）去甘草、粳米。加麦冬、天
花粉、牛蒡子、连翘治之。出现之时渴甚者。以白虎解毒汤（见二十六条）治之。渴而烦躁者。以白
虎解毒汤（见二十六条）加黄柏治之。正收之时而渴者。以竹叶石膏汤（见二十六条）去人参、半
夏、炙甘草、粳米。加元参、牛蒡子、黄芩、黄连、生地黄、地骨皮治之。
朱曰 唇不红而但作渴者。脾虚而津液不生也。辨证之精如此。
门冬甘露饮 治麻热甚而渴。
麦冬（去心二钱） 元参 黄芩 栝蒌根 连翘（各一钱） 生甘草（五钱） 灯心三十根、淡
竹叶二十片引。
七味白术散 治胃虚、津气不行而渴。
人参 白术（炒） 白茯苓 木香（各一钱） 藿香叶 葛根（各八分） 炙甘草（六分） 水煎服。
葛根麦门冬散 治热毒斑，头疼、壮热，心神烦闷。
葛根 麦冬（去心各一钱） 石膏 升麻 赤芍 人参 甘草 白茯苓（各五分） 淡竹叶（七片） 水煎服。
The fever comes like the tide at its appointed time. When first observed, there are no other defects. If tidal fever persists after the rash has fully erupted, apply the excellent prescription for retreating yang and benefiting yin.
Although tidal fever varies in severity, there is no need to panic when it appears initially. If tidal fever occurs after the rash has fully erupted and receded, urgently use Siwu Tang (Four Substance Decoction) to benefit its yin blood.
Tidal fever refers to an episode occurring once daily towards evening, arriving punctually like the tide, never failing in its trust. This syndrome is commonly seen during the initial eruption of measles. If observed after the rash has fully erupted and receded, it is caused by deficiency of qi and blood. Treatment should primarily focus on retreating yang and benefiting yin, using Siwu Tang (see Article 25) added with Ren Shen (Ginseng Radix).
Measles eruption originates from pathogenic invasion of the Heart and Lung; excessive fire leads to dryness and depletion of body fluids, causing dry mouth. Clearing Heart fire and purging Lung heat often yields miraculous effects; if treatment does not violate the appropriate timing, the disease will be cured early.
Thirst belongs to the syndrome of excessive heat in the Lung and Stomach meridians. The lips and mouth appear red like cinnabar when thirst occurs. Treatment involves clearing Metal (Lung), purging fire, and generating fluids. Management must distinguish between excess and deficiency patterns.
In measles, the condition burns like fire, and patients drink copiously, yet the blazing pathogen cannot be extinguished by a single cup of water. The throat is dry, the Heart feels hot, body fluids are depleted, and the Stomach cavity feels scorched.
Thirst is a manifestation of excessive heat in both the Lung and Stomach meridians; the lips and mouth must be red. If the lips and mouth are red like cinnabar, this indicates thirst accompanying measles eruption. This is caused by internal heat; excessive fire depletes fluids, resulting in dry mouth. Treatment should involve purging fire, clearing Metal (Lung), and generating fluids. However, one must examine whether the pattern is excess or deficiency before treating. If stool and urine are constipated and difficult, heat is severe; suitable cooling and draining agents should be used, primarily Mendong Ganlu Yin (Asparagus Decoction for Sweet Dew), removing Gan Cao (Licorice Root). If stool and urine are clear and free-flowing, and the lips and mouth are pale without redness but still thirsty, this is likely due to overuse of cold-natured medicines damaging Middle Qi and qi-blood. Spleen deficiency fails to generate fluids, causing thirst. Use Qiwei Baizhu San (Seven-Ingredient Atractylodes Macrocephala Powder), removing Mu Xiang (Aucklandia Root), replacing Bai Zhu (Atractylodes Rhizome) with Shan Yao (Dioscorea Rhizome), and adding Jing Mi (Rice Grain). For thirst appearing during the initial heat stage, use Baihu Tang (White Tiger Decoction) (see Article 26), removing Gan Cao (Licorice Root) and Jing Mi (Rice Grain), adding Mai Dong (Ophiopogon Tuber), Tian Hua Fen (Trichosanthes Root), Niu Bang Zi (Arctium Fruit), and Lian Qiao (Forsythia Fruit). Alternatively, use Gegen Maidong San (Kudzu and Ophiopogon Powder), removing Ren Shen (Ginseng Radix), Sheng Ma (Cimicifuga Rhizome), Chi Shao (Red Peony Root), and Gan Cao (Licorice Root), adding Tian Hua Fen (Trichosanthes Root), Lian Qiao (Forsythia Fruit), and Niu Bang Zi (Arctium Fruit). For severe thirst, use Huanglian Jiedu Tang (Coptis Decoction for Resolving Toxicity) (see Article 2), removing Gan Cao (Licorice Root) and Jie Geng (Platycodon Root). For thirst appearing during the eruption phase, use Baihu Tang (White Tiger Decoction) (see Article 26), removing Gan Cao (Licorice Root) and Jing Mi (Rice Grain), adding Mai Dong (Ophiopogon Tuber), Tian Hua Fen (Trichosanthes Root), Niu Bang Zi (Arctium Fruit), and Lian Qiao (Forsythia Fruit). For severe thirst during eruption, use Baihu Jiedu Tang (White Tiger Decoction for Resolving Toxicity) (see Article 26). For thirst accompanied by restlessness, use Baihu Jiedu Tang (White Tiger Decoction for Resolving Toxicity) (see Article 26) added with Huang Bo (Phellodendron Bark). For thirst appearing during the exact receding phase of the rash, use Zhuye Shigao Tang (Bamboo Leaf and Gypsum Decoction) (see Article 26), removing Ren Shen (Ginseng Radix), Ban Xia (Pinellia Tuber), Zhi Gan Cao (Honey-fried Licorice Root), and Jing Mi (Rice Grain), adding Yuan Shen (Scrophularia Root), Niu Bang Zi (Arctium Fruit), Huang Qin (Scutellaria Root), Huang Lian (Coptis Rhizome), Sheng Di Huang (Rehmannia Root), and Di Gu Pi (Lycium Bark).
Master Zhu said: Thirst without redness of the lips indicates Spleen deficiency failing to generate fluids. Such precise differentiation is remarkable.
Mendong Ganlu Yin: Treats severe measles heat with thirst.
Ingredients: Mai Dong (Ophiopogon Tuber, heart removed, 2 qian), Yuan Shen (Scrophularia Root), Huang Qin (Scutellaria Root), Gua Lou Gen (Trichosanthes Root), Lian Qiao (Forsythia Fruit) (each 1 qian), Sheng Gan Cao (Raw Licorice Root, 5 qian). Deng Xin Cao (Juncus Effusus Pith, 30 strands) and Dan Zhu Ye (Lophatherum Herb, 20 slices) as guides.
Qiwei Baizhu San: Treats thirst due to Stomach deficiency and impaired flow of qi and fluids.
Ingredients: Ren Shen (Ginseng Radix), Chao Bai Zhu (Stir-baked Atractylodes Rhizome), Bai Fu Ling (Poria), Mu Xiang (Aucklandia Root) (each 1 qian), Huo Xiang Ye (Agastache Leaf), Ge Gen (Pueraria Root) (each 8 fen), Zhi Gan Cao (Honey-fried Licorice Root, 6 fen). Decoct in water and take orally.
Gegen Maidong San: Treats toxic heat macules, headache, high fever, and mental restlessness.
Ingredients: Ge Gen (Pueraria Root), Mai Dong (Ophiopogon Tuber, heart removed, each 1 qian), Shi Gao (Gypsum Fibrosum), Sheng Ma (Cimicifuga Rhizome), Chi Shao (Red Peony Root), Ren Shen (Ginseng Radix), Gan Cao (Licorice Root), Bai Fu Ling (Poria) (each 5 fen), Dan Zhu Ye (Lophatherum Herb, 7 slices). Decoct in water and take orally.