【暑气呕吐之症】暑热行令，头眩目暗，呕吐暴作，身热恶寒，烦渴引饮，齿干唇燥，
腹中疼痛，小便赤色，或混浊涩短，此暑热呕吐之症也。
【暑气呕吐之因】夏秋之交，中气不足，暑热之气，入于肠胃，则令呕吐也。
【暑气呕吐之脉】虚大而涩，或见沉细，或见沉数，或见躁疾，或见脉伏。
【暑气呕吐之治】气怯脉虚大，家秘香薷饮。气热烦渴，脉沉数，人参石膏汤。小便赤
，混浊涩短，土藿香汤，调益元散。烦热呕吐，栀连平胃散，口渴加干葛、竹茹；有痰涎，栀连二
家秘香薷饮
川连 浓朴 香薷 甘草 人参 广皮
口渴加干葛、竹茹，有痰加半夏、藿香。
人参石膏汤 见前噎隔。
益元散 即六一散。
栀连平胃散 即平胃散加栀、连。
栀连二陈汤 即二陈汤加栀、连。
【湿气呕吐之症】胸前满闷，头重身重，面目浮肿，呕恶而吐，口不渴，吐多痰涎，此
湿气呕吐之症也。
【湿气呕吐之因】长夏时令，坐卧卑湿，湿气袭于胃土，胃气不能下降，而湿气呕吐作
【湿气呕吐之脉】脉多濡软，或见浮缓，或见沉伏，脉迟者寒，脉数者热。
【湿气呕吐之治】身热脉浮，宜散表安胃，佐以辛香温散，人参败毒散，加藿香、紫
苏，或香苏平胃散。寒湿体虚者，香砂二陈汤，寒甚用术附汤；应分利小便者，平胃五苓散。湿热
者，栀连二陈平胃散，加减治之。
人参败毒散
人参 羌活 独活 柴胡 前胡 枳壳 桔梗 川芎 广皮 甘草 白茯苓
香苏平胃散 即平胃散加藿香、紫苏。
香砂二陈汤 即二陈汤加藿香、砂仁。
理中汤 见前寒吐。
平胃五苓散 即平胃散、五苓散合用。
术附汤
白术 附子
【暑热引起呕吐的症状】暑热之气当令，出现头晕目眩、视物昏暗，呕吐突然发作，身体发热且怕冷，心烦口渴想喝水，牙齿干燥嘴唇焦燥，腹部疼痛，小便颜色红赤，或者浑浊、排尿涩滞且短少，这是暑热所致呕吐的症状。
【暑热引起呕吐的原因】在夏秋交替之际，人体中气不足，暑热之气侵入肠胃，从而导致呕吐。
【暑热引起呕吐的脉象】脉象虚大且涩，或者表现为沉细，或者表现为沉数，或者表现为躁动疾速，或者表现为脉伏（深藏不显）。
【暑热引起呕吐的治疗】若气息怯弱、脉象虚大，使用家传秘方香薷饮。若气分有热、心烦口渴、脉象沉数，使用人参石膏汤。若小便红赤、浑浊、排尿涩滞且短少，使用土藿香汤，并调服益元散。若烦热呕吐，使用栀连平胃散，口渴者加干葛、竹茹；若有痰涎，使用栀连二陈汤。
【方剂组成与加减】
家传秘方香薷饮：川黄连、厚朴、香薷、甘草。人参、广陈皮。口渴加干葛、竹茹，有痰加半夏、藿香。
人参石膏汤：见前文噎隔篇。
益元散：即六一散。
栀连平胃散：即平胃散加入栀子、黄连。
栀连二陈汤：即二陈汤加入栀子、黄连。
【湿气引起呕吐的症状】胸部和胸前满闷，头部沉重、身体困重，面部和眼睛浮肿，恶心呕吐，口中不渴，吐出多量痰涎，这是湿气所致呕吐的症状。
【湿气引起呕吐的原因】在长夏时令，久坐或卧于低洼潮湿之处，湿气侵袭胃土，导致胃气不能下降，从而引发湿气呕吐。
【湿气引起呕吐的脉象】脉象多濡软，或者表现为浮缓，或者表现为沉伏，脉迟者为寒证，脉数者为热证。
【湿气引起呕吐的治疗】若身体发热、脉象浮，宜疏散表邪、安和胃气，佐以辛香温散之法，使用人参败毒散，加藿香、紫苏，或者使用香苏平胃散。若是寒湿体质虚弱者，使用香砂二陈汤，寒邪甚重者用术附汤；应当分利小便者，使用平胃五苓散。若是湿热证，使用栀连二陈平胃散，根据情况加减治疗。
【方剂组成】
人参败毒散：人参、羌活、独活、柴胡、前胡、枳壳、桔梗、川芎、广陈皮、甘草、白茯苓。
香苏平胃散：即平胃散加入藿香、紫苏。
香砂二陈汤：即二陈汤加入藿香、砂仁。
理中汤：见前文寒吐篇。
平胃五苓散：即平胃散与五苓散合用。
术附汤：白术、附子。
[Symptoms of Vomiting Caused by Summer-Heat] When the pathogenic factor of summer-heat is prevalent, symptoms include dizziness and dim vision, sudden onset of vomiting, fever with aversion to cold, irritability and thirst with a desire to drink, dry teeth and parched lips, abdominal pain, red urine, or turbid urine with dysuria and oliguria. These are the symptoms of vomiting caused by summer-heat.
[Etiology of Vomiting Caused by Summer-Heat] During the transition between summer and autumn, if the Middle Qi (Vital Energy of the Spleen and Stomach) is deficient, the pathogenic factor of summer-heat enters the intestines and stomach, leading to vomiting.
[Pulse Signs of Vomiting Caused by Summer-Heat] The pulse may be empty, large, and choppy; or deep and fine; or deep and rapid; or restless and rapid; or hidden (deeply concealed).
[Treatment of Vomiting Caused by Summer-Heat] If there is Qi deficiency with an empty and large pulse, use Jia Mi Xiang Ru Yin (Secret Formula of Elsholtzia Decoction). If there is Heat in the Qi level with irritability and thirst, and a deep and rapid pulse, use Renshen Shigao Tang (Ginseng and Gypsum Decoction). If there is red, turbid urine with dysuria and oliguria, use Tu Huoxiang Tang (Patchouli Decoction), administered with Yi Yuan San (Benefit Primordial Powder). If there is irritability, heat, and vomiting, use Zhi Lian Ping Wei San (Gardenia and Coptis Formula for Invigorating the Stomach); add Gan Ge (Kudzu Root) and Zhu Ru (Bamboo Shavings) for thirst; if there is phlegm-fluid, use Zhi Lian Er Chen Tang (Gardenia and Coptis Two-Chen Decoction).
[Formula Composition and Modifications]
Jia Mi Xiang Ru Yin (Secret Formula of Elsholtzia Decoction): Huanglian (Coptidis Rhizoma), Houpo (Magnoliae Officinalis Cortex), Xiangru (Elsholtziae Herba), Gancao (Glycyrrhizae Radix et Rhizoma), Renshen (Ginseng Radix), Guangpi (Citri Reticulatae Pericarpium). Add Gan Ge (Puerariae Lobatae Radix) and Zhu Ru (Bambusae Caulis in Taenia) for thirst; add Banxia (Pinelliae Rhizoma) and Huoxiang (Agastaches Herba) for phlegm.
Renshen Shigao Tang (Ginseng and Gypsum Decoction): See section on Dysphagia and Regurgitation previously.
Yi Yuan San (Benefit Primordial Powder): Also known as Liu Yi San (Six-to-One Powder).
Zhi Lian Ping Wei San (Gardenia and Coptis Formula for Invigorating the Stomach): Ping Wei San (Formula for Invigorating the Stomach) plus Zhizi (Gardeniae Fructus) and Huanglian (Coptidis Rhizoma).
Zhi Lian Er Chen Tang (Gardenia and Coptis Two-Chen Decoction): Er Chen Tang (Two-Chen Decoction) plus Zhizi (Gardeniae Fructus) and Huanglian (Coptidis Rhizoma).
[Symptoms of Vomiting Caused by Dampness] There is fullness and oppression in the chest, heaviness of the head and body, edema of the face and eyes, nausea and vomiting, no thirst in the mouth, and expectoration of copious phlegm-fluid. These are the symptoms of vomiting caused by dampness.
[Etiology of Vomiting Caused by Dampness] During the late summer season, sitting or lying in low and damp places allows dampness to invade the Stomach Earth, preventing Stomach Qi from descending, thereby causing vomiting due to dampness.
[Pulse Signs of Vomiting Caused by Dampness] The pulse is mostly soggy and soft, or floating and moderate, or deep and hidden. A slow pulse indicates Cold, while a rapid pulse indicates Heat.
[Treatment of Vomiting Caused by Dampness] If there is fever and a floating pulse, it is appropriate to release the exterior and harmonize the Stomach, assisted by acrid-aromatic warming dispersants. Use Renshen Baidu San (Ginseng Detoxification Powder) with added Huoxiang (Agastaches Herba) and Zisu (Perillae Folium), or Xiang Su Ping Wei San (Patchouli and Perilla Formula for Invigorating the Stomach). For those with Cold-Dampness and constitutional deficiency, use Xiang Sha Er Chen Tang (Patchouli and Amomum Two-Chen Decoction); if Cold is severe, use Shu Fu Tang (Atractylodes and Aconite Decoction). If diuresis is indicated, use Ping Wei Wu Ling San (Invigorating the Stomach and Five-Ingredient Powder with Poria Decoction). For Damp-Heat, use Zhi Lian Er Chen Ping Wei San (Gardenia, Coptis, Two-Chen, and Invigorating the Stomach Powder) and modify according to the condition.
[Formula Composition]
Renshen Baidu San (Ginseng Detoxification Powder): Renshen (Ginseng Radix), Qianghuo (Notopterygii Rhizoma et Radix), Duhuo (Angelicae Pubescentis Radix), Chaihu (Bupleuri Radix), Qianhu (Peucedani Radix), Zhike (Aurantii Fructus Immaturus), Jiegeng (Platycodonis Radix), Chuanxiong (Chuanxiong Rhizoma), Guangpi (Citri Reticulatae Pericarpium), Gancao (Glycyrrhizae Radix et Rhizoma), Baifuling (Poria cum Ramo et Ligno).
Xiang Su Ping Wei San (Patchouli and Perilla Formula for Invigorating the Stomach): Ping Wei San (Formula for Invigorating the Stomach) plus Huoxiang (Agastaches Herba) and Zisu (Perillae Folium).
Xiang Sha Er Chen Tang (Patchouli and Amomum Two-Chen Decoction): Er Chen Tang (Two-Chen Decoction) plus Huoxiang (Agastaches Herba) and Sharen (Amomi Fructus).
Lizhong Tang (Regulate the Middle Decoction): See section on Cold Vomiting previously.
Ping Wei Wu Ling San (Invigorating the Stomach and Five-Ingredient Powder with Poria Decoction): Combination of Ping Wei San (Formula for Invigorating the Stomach) and Wu Ling San (Five-Ingredient Powder with Poria).
Shu Fu Tang (Atractylodes and Aconite Decoction): Baizhu (Atractodis Macrocephalae Rhizoma), Fuzi (Aconiti Lateralis Radix Praeparata).