1. Bai Hu Tang

1. Bai Hu Tang

The composition of this formula is: Sheng Shi Gao 30 g, Zhi Mu 10 g, Jing Mi 30 g, Gan Cao 6 g.

The "Shang Han Lun" states: "What are the external symptoms of Yangming disease? The answer is: fever, spontaneous sweating, no aversion to cold, but rather aversion to heat." "If, after a cold, the heat is trapped inside, with both exterior and interior being hot, constantly feeling the wind, extremely thirsty, with a dry and irritated tongue, wanting to drink several liters of water, Bai Hu Jia Ren Shen Tang is the main prescription." Later generations, based on the above passage, summarized the indications for Bai Hu Tang as: high fever, extreme thirst, profuse sweating, and rapid pulse. Any acute febrile disease that exhibits these four symptoms during its high-fever stage can be treated with Bai Hu Tang with adjustments. The author has used this formula to treat flu, colds, Salmonella infections, meningitis, lobar pneumonia, sepsis, subacute allergic sepsis, rheumatic fever, tuberculosis, and connective tissue diseases, where high fever persists despite treatment, achieving certain therapeutic effects. The "Shang Han Lun" also states: "After a cold is resolved, if one feels weak, short of breath, and has reversed qi that wants to vomit, Zhu Ye Shi Gao Tang is the main prescription." Zhu Ye Shi Gao Tang is made by removing Zhi Mu from Bai Hu Tang and adding Dang Shen, Mai Dong, and Ban Xia, used to treat the late stage of febrile diseases, when the body is weak, sweaty, and lacking energy. The author often uses this formula to treat the residual symptoms of Bai Hu Tang. If Bai Hu Tang removes Jing Mi and adds Sheng Di, Niu Xi, and Mai Dong, it becomes Yu Nu Jian (from "Jing Yue Quan Shu"), effective in treating toothache caused by yin deficiency and stomach heat. If Bai Hu Tang adds Cang Shu, it becomes Bai Hu Jia Cang Shu Tang (from "Zheng Zhi Jun Sheng"), mainly used to treat Yangming stomach heat, with symptoms of epigastric fullness and heaviness due to damp-heat stagnation in the spleen. The author uses this formula to treat summer heatstroke, high fever, excessive sweating, intense thirst, and epigastric fullness, with good results. If Bai Hu Tang adds Xuan Shen and Xi Jiao, it becomes Hua Ban Tang (from "Wen Bing Tiao Bian"), used to treat heat-related conditions in the blood, which modern medicine considers an effective formula for treating all hemorrhagic febrile diseases. The author often uses this formula to treat DIC caused by sepsis, as well as purpura and bleeding caused by blood disorders.