Qin Jiao (Gentianae Macrophyllae Radix), grows in the valleys of Feiwu, and is now commonly found in the military garrisons of Heshan Prefecture. The root is earth-yellow in color and interwoven, about one chi in length, with varying thickness; the stems are five to six cun high. The leaves are luxuriant, and both the stems and petioles are greenish-blue, resembling the leaves of lettuce; it blooms purple flowers in the sixth lunar month, similar to Kudzu flowers, and produces seeds in the same month. The roots are typically harvested in spring and autumn and dried in the shade. *Zhengyuan Guangli Fang* records: For treating jaundice with symptoms of vexation, heat, dry mouth, and yellowing of skin and flesh, use Qin Jiao 12 fen and one sheng of cow's milk, boil together until reduced to seven ge, strain, and take warm in two doses for recovery. This prescription originates from Xu Renze. Additionally, Cui Yuanliang's *Jiyan Fang* states: For suspected cases of back carbuncle, one should immediately take Qin Jiao and cow's milk decoction; if three to five loose stools occur, the condition will resolve. The method is the same as above. Another prescription for jaundice uses one da liang of Qin Jiao, finely chopped into two portions, soaked in one sheng of fine wine, half a sheng per portion, squeezed to extract juice, strained, and taken on an empty stomach in two doses. If diarrhea occurs, stop taking it when bowel movements normalize; those accustomed to alcohol are easier to treat. There are several types of jaundice: "Wine Jaundice" caused by excessive drinking; jaundice resulting from night eating and accidentally consuming rat feces; jaundice due to overwork, often accompanied by phlegm and nasal discharge, red veins in the eyes, progressive emaciation, or facial flushing and nausea. Cui Yuanliang used this effectively, and his treatments were highly successful. Qin Jiao must be selected from new, high-quality specimens with rosette patterns.

Huang Qin (Scutellariae Radix), grows in the valleys of Zigui and Yuanju, and is now available in counties near Sichuan-Shu, Hedong, and Shaanxi. The seedling grows over one chi tall, with stems as thick as chopsticks; leaves grow in clusters from all directions at ground level, resembling Purple Sage, reaching about one chi in height, though some have single stems with slender, dark green leaves arranged oppositely; it blooms purple flowers in the sixth lunar month; the root is yellow, similar in thickness to Anemarrhenae Rhizoma, and four to five cun long. Roots are harvested in the second and eighth lunar months and sun-dried. *Wu Pu Ben Cao* states: Huang Qin is also known as Yin Tou or Nei Xu. It sprouts in the second lunar month with a reddish-yellow hue. Leaves are arranged in pairs or quaternary oppositions; stems are hollow, square or round, three to four chi high; flowers are purple-red. Fruits turn black in the fifth lunar month; roots are yellow, harvested in the second and ninth lunar months, slightly differing from current varieties. Zhang Zhongjing used Huang Qin in all four formulas of Xiexin Tang (Drain the Epigastrium Decoction) for treating epigastric fullness due to Cold-Heat complex in Taiyang disease, because it treats various heat syndromes and benefits the Small Intestine. Furthermore, after incorrect purgative treatment for Taiyang disease leading to persistent diarrhea, Gegen Huangqin Huanglian Tang (Kudzu, Scutellaria, and Coptis Decoction) was used, as well as formulas for stabilizing pregnancy, which frequently employ Huang Qin. Modern physicians find it effective and have recorded its use. Additionally, the *Qianjin Fang* records a memorial by the Governor of Ba Commandery regarding Modified Sanhuang Wan (Three Yellows Pill) for treating men's five labors and seven injuries, Xiao Ke (Wasting-Thirst syndrome), lack of muscle growth, and women's leukorrhea with alternating cold and heat in hands and feet. In the first three months of spring: Huang Qin 4 liang, Da Huang 3 liang, Huang Lian 4 liang; in the next three months (summer): Huang Qin 6 liang, Da Huang 1 liang, Huang Lian 7 liang; in the next three months (autumn): Huang Qin 6 liang, Da Huang 2 liang, Huang Lian 3 liang; in the last three months (winter): Huang Qin 3 liang, Da Huang 5 liang, Huang Lian 2 liang. These three herbs are crushed according to the season, sifted, and formed into honey pills the size of Vigna mungo beans. Take five pills with rice water, three times daily; if ineffective, increase to seven pills. After one month of administration, the illness resolves. Long-term consumption has been verified to enhance physical agility comparable to galloping horses. Pork is contraindicated. Tao Hongjing stated: Round-shaped Huang Qin is called Zi Qin. Zhang Zhongjing frequently used it in formulas for miscellaneous diseases.