夫时气病四日。太阴受病。太阴为三阴之首。三日以后。诸阳受病讫。即传之于阴。太
阴之脉。主于喉咽。故得病四日。腹满而咽干。其病在胸膈。故可吐而愈也。
治时气四日。身体壮热。四肢疼痛。胸满心烦。宜服苦参汤吐之方。
苦参（一两锉） 乌梅（七颗捶碎） 鸡子（一枚取清）
上二味。先以酽醋一大盏。煮至五分。去滓。下鸡子清。搅令匀。不计时候。温温去
沫服之。当吐出毒热气即愈。
治时气四日。胸中痰壅。憎寒壮热。头痛。宜服桃柳心汤吐之方。
桃心（一握） 柳心（一握） 甘草（三分生用锉） 乌梅（五颗捶碎） 栀子仁（三分）
上件药。以淡浆水一大盏。煎至六分。去滓。不计时候。温服。良久当吐。未吐再服。
治时气四日。胸膈烦满。壮热。宜吐之方。
苦参（一两锉）
上以醋一大盏。煎至五分。去滓。不计时候。温服。良久当吐即愈。
治时气四日。胸膈满闷。或时吐逆。宜服葱根散方。
葱根（一两锉） 甘草（一分炙微黄锉） 川大黄（半两炙碎微炒） 麦门冬（一两半
去心）
人参（一两去芦头）
上件药。捣罗为散。每服四钱。以水一中盏。煎至六分。去滓。不计时候温服。
治时气四日。曾经发汗不解。寒热无恒。心中躁闷。宜服犀角散方。
犀角屑（一两） 麻黄（半两去根节） 木通（半两锉） 桂心（半两） 川升麻（半
两） 葛根
（半两
汤浸去皮
尖双仁
上件药。捣罗为散。每服五钱。以水一大盏。煎至五分。去滓。不计时候。温服。
治时气四日。热渴不已。往来寒热。不能饮食。宜服知母散方。
知母 枳实（麸炒微黄） 柴胡（去苗） 地骨皮（以上各一两） 栀子仁 麦门冬（去
心）
甘草（半两炙微赤锉）
上件药。捣罗为散。每服五钱。以水一大盏。煎至五分。去滓。不计时候。温服。
When the epidemic cold (Shi Qi Bing) disease reaches the fourth day, the Taiyin meridian is affected. The Taiyin meridian is the head of the three Yin meridians. After three days, when the pathogenic factors have exhausted their attack on the Yang meridians, they subsequently transmit to the Yin meridians. The Taiyin meridian governs the throat and pharynx; therefore, on the fourth day of illness, symptoms such as abdominal fullness and dryness of the throat appear. Since the pathology is located in the chest and diaphragm, it can be cured by inducing vomiting.
For the treatment of epidemic cold disease on the fourth day, characterized by high fever of the body, pain in the four limbs, chest fullness, and mental restlessness, the Kushen Tang (Kushen Decoction) should be taken to induce vomiting.
Ingredients: Kushen Radix (Sophorae Flavescentis Radix) (1 liang, sliced), Wumei Fructus (Mume Fructus) (7 pieces, crushed), Chicken Egg (1 piece, egg white extracted).
Take the above ingredients. First, boil a large cup of strong vinegar until only one-fifth remains. Remove the dregs, add the egg white, stir well until uniform. Take warm at any time, removing the foam. When the toxic heat qi is vomited out, the patient will recover.
For the treatment of epidemic cold disease on the fourth day, characterized by phlegm obstruction in the chest, aversion to cold with high fever, and headache, the Taoliuxin Tang (Peach and Willow Heart Decoction) should be taken to induce vomiting.
Ingredients: Tao Xin (Peach Heart) (one handful), Liu Xin (Willow Heart) (one handful), Gancao Radix et Rhizoma (Licorice Root and Rhizome) (3 fen, raw, sliced), Wumei Fructus (Mume Fructus) (5 pieces, crushed), Zhizi Ren Semen Gardeniae (Gardenia Seed) (3 fen).
Take the above herbs. Boil in a large cup of light fermented grain water until only six-tenths remain. Remove the dregs. Take warm at any time. After a while, vomiting should occur. If vomiting does not occur, take again.
For the treatment of epidemic cold disease on the fourth day, characterized by vexation and fullness in the chest and diaphragm, and high fever, a formula for inducing vomiting is suitable.
Ingredients: Kushen Radix (Sophorae Flavescentis Radix) (1 liang, sliced).
Take the above herb. Boil in a large cup of vinegar until only one-fifth remains. Remove the dregs. Take warm at any time. After a while, vomiting should occur, and the patient will recover.
For the treatment of epidemic cold disease on the fourth day, characterized by fullness and oppression in the chest and diaphragm, or occasional retching and vomiting, the Conggen San (Scallion Root Powder) is suitable.
Ingredients: Cong Gen (Scallion Root) (1 liang, sliced), Gancao Radix et Rhizoma (Licorice Root and Rhizome) (1 fen, honey-fried until slightly yellow, sliced), Chuan Dahuang Radix et Rhizoma Rhei (Rhubarb Root and Rhizome) (0.5 liang, fried after crushing), Maimendong Tuber Ophiopogonis (Ophiopogon Tuber) (1.5 liang, heart removed), Renshen Radix Ginseng (Ginseng Root) (1 liang, radix neck removed).
The above herbs are pounded and sifted into a powder. Each dose consists of 4 qian. Boil with one medium cup of water until only six-tenths remain. Remove the dregs. Take warm at any time.
For the treatment of epidemic cold disease on the fourth day, where sweating has been attempted but the disease persists, with alternating chills and fever without constancy, and mental restlessness and oppression in the heart, the Xijiao San (Rhinoceros Horn Powder) is suitable.
Ingredients: Xijiao Cornu Rinocerontis (Rhinoceros Horn) (1 liang, shaved), Mahuang Herba Ephedrae (Ephedra Herb) (0.5 liang, roots and joints removed), Mutong Caulis Akebiae (Akebia Stem) (0.5 liang, sliced), Guixin Cortex Cinnamomi (Cinnamon Bark) (0.5 liang), Chuan Shengma Rhizoma Cimicifugae (Black Cohosh Rhizome) (0.5 liang), Gegen Radix Puerariae (Kudzu Root) (0.5 liang, soaked in hot water, skin and tips removed, split kernels).
The above herbs are pounded and sifted into a powder. Each dose consists of 5 qian. Boil with a large cup of water until only one-fifth remains. Remove the dregs. Take warm at any time.
For the treatment of epidemic cold disease on the fourth day, characterized by unceasing heat and thirst, alternating chills and fever, and inability to eat, the Zhimu San (Anemarrhena Powder) is suitable.
Ingredients: Zhi Mu Rhizoma Anemarrhenae (Anemarrhena Rhizome), Zhishi Fructus Aurantii (Bitter Orange Fruit) (bran-fried until slightly yellow), Chaihu Radix Bupleuri (Bupleurum Root), Digupi Cortex Lycii (Lycium Bark) (above each 1 liang), Zhizi Semen Gardeniae (Gardenia Seed), Maimendong Tuber Ophiopogonis (Ophiopogon Tuber) (heart removed), Gancao Radix et Rhizoma (Licorice Root and Rhizome) (0.5 liang, honey-fried until slightly red, sliced).
The above herbs are pounded and sifted into a powder. Each dose consists of 5 qian. Boil with a large cup of water until only one-fifth remains. Remove the dregs. Take warm at any time.