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Mr. Wen from Yanjing, in his youth had weak Qi (vital energy). He frequently underwent moxibustion at Qihai (CV6) and Zusanli (ST36), accumulating approximately five to seven thousand moxa cones. In his old age, despite the severe cold of winter, he preferred the cold wind, which relieved his headache; however, if he moved to a warm place or encountered smoke/fire, the pain would recur. This was due to excessive moxibustion in the past.

Prescription: Qianghuo Gen (Radix Notopterygii, 3 qian), Zhimu (Rhizoma Anemarrhenae, soaked in wine), Huangqin (Radix Scutellariae, soaked in wine, each 1.5 qian), Huangbai (Cortex Phellodendri, soaked in wine), Zhi Gancao (Radix Glycyrrhizae Preparata), Huangqi (Radix Astragali, 0.5 fen), Ben Cao (Radix Ligustici Chuanxiong, 0.5 fen), Man Jing Zi (Fructus Viticis, a little), Xing Hong Hua (Flos Carthami Tinctorii, a little).

Crush the herbs into pieces the size of hemp seeds. Divide into two doses. For each dose, add two cups of water, decoct until one cup remains, strain, and take slightly warm after meals.

Yao Gongmao, Left Vice Director of the Secretariat, aged sixty-seven, suffered from "Shidu" (seasonal toxic heat disease). In the spring of the Wuchen year of the Zhiyuan era, the condition recurred due to alcohol consumption. His head and face were red, swollen, and painful, especially around the ears. He experienced chest irritability and difficulty in swallowing. The lower half of his body felt aversion to cold, particularly in the feet. Consequently, he connected a bed and a kang (heated brick bed), sleeping with his upper body on the bed and lower body on the kang. His appetite decreased, and he felt mentally exhausted and physically weak. His pulse was floating and rapid, but deep pressure revealed it to be wiry and thin, indicating clear Upper Heat and Lower Cold. The *Neijing* states: "Excess heat causes swelling." Diseases in spring often affect the head. The *Nanjing* states: "Heat in the head and body is suitable for treatment with bian stones (lancets) because it facilitates dispersion." Therefore, he performed approximately fifty punctures on the swollen area. The blood extracted was purple-black, resembling dewdrops, and the swelling and pain subsided shortly after. He then received one hundred large moxa cones at Qihai (CV6) to assist Yang deficiency in the Lower Jiao and dispel Yin cold. Subsequently, twenty-one moxa cones were applied to each of the Zusanli (ST36) points to treat cold feet and guide the heat downward. The prescription followed the principle: "Treat heat with cold." However, diseases vary in location, and treatments must be appropriate to distance and depth, without exceeding established protocols. Huangqin (Radix Scutellariae) and Huanglian (Rhizoma Coptidis) served as the Sovereign (Jun) herbs, bitter and cold, stir-fried with wine to drain Upper Heat. Jiegeng (Radix Platycodonis) and Gancao (Radix Glycyrrhizae) are acrid, sweet, and warm, ascending in nature, serving as Assistant (Zuo) herbs to aid the bitter drugs in treating heat. Chaihu (Radix Bupleuri) and Shengma (Rhizoma Cimicifugae) are bitter and neutral, with light flavors, representing Yang within Yin, serving as Minister (Chen) herbs to disperse Upper Heat. Lianqiao (Fructus Forsythiae) is acrid, bitter, and neutral, resolving nodules and reducing swelling. Danggui Shen (Radix Angelicae Sinensis Root) is acrid, sweet, and warm, harmonizing blood and relieving pain. Dahuang (Radix et Rhizoma Rhei) is bitter and cold, baked with wine to guide the bitter property upward to the vertex, driving heat downward, serving as Envoy (Shi) herb. After administration, swelling and pain significantly reduced, and bowel movements became unobstructed. In the second dose, Dahuang was removed. With careful speech and dietary regulation, he recovered fully within ten days.