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Treats epidemic wind-warmth, alternating chills and fever due to miasma malaria, and tidal alternating chills and fever; all are suitable for taking this formula.
Chenpi (Exocarpium Citri Reticulatae), Mahuang (Ephedrae Herba), Xiangfuzi (Cyperi Rhizoma), Gancao (Glycyrrhizae Radix et Rhizoma) (each 1 liang); Jingjiesui (Schizonepetae Spica), Nongpu (Magnoliae Officinalis Cortex) (each 2 liang); Caoguoren (Tsaoko Fructus Cardamomi) (3 pieces); Chuan Baizhi (Angelicae Dahuricae Radix), Guixin (Cinnamomi Ramulus) (each half liang).
The above herbs are chopped. For each dose, take 2 qian. Add one large cup of water, 3 slices of fresh ginger, and 2 jujubes. Decoct until the volume reduces to seven-tenths. Remove the dregs and take warm at any time without restriction.

Discussion: The diseases of widows have not been discussed since ancient times. Only *The Biography of Cang Gong* and Chu Cheng briefly mentioned them. The term "widow" is defined by Mencius as "a woman without a husband." Such as nuns or widowed women, possessing only Yin without Yang, desiring men but unable to obtain them, thus becoming ill with depression. The *I Ching* states: "Heaven and Earth interact, and the transformation of all things becomes pure and abundant; men and women unite their essence, and all things are generated." Can isolated Yang and isolated Yin exist? Having dwelled within the inner chambers, desires arise but remain unfulfilled, leading to conflict between Yin and Yang, resulting in alternating chills and fever resembling malaria, which over time becomes consumptive disease (Lao). Additionally, there are symptoms such as amenorrhea, leukorrhea (white discharge from the vagina), phlegm rebellion, headache due to wind, chest qi stagnation with fullness, dark complexion, and emaciation; these are all diseases of widows. Upon palpating the pulse, only the Liver pulse is wiry and extends beyond the Cun position up to the Yuji area. Investigating the source of the pulse, these ailments stem from excessive blood. The classics state: "When a man's essence is abundant, he desires sexual intercourse; when a woman's blood is abundant, she conceives." Observing her menstrual blood, more than half of the principle is understood.

Academician Xu stated: There was a nun suffering from aversion to wind, body fatigue, alternating chills and fever, red face, vexation, and spontaneous sweating. At that time, epidemic qi was prevalent. Physicians, seeing chills and fever, treated it as Cold Damage (Shanghan), administering various combinations of Xiaochaihu Tang and Dachaihu Tang. After several days, the condition worsened. I examined her and said: "There are no pulses indicating external cold pathogens in the three positions; however, the Jueyin Liver pulse is wiry and long, extending to the Yuji area. It is appropriate to administer drugs that suppress Yin." I formulated this prescription, and upon treatment, she recovered.
Beichaihu (Bupleuri Radix), Qinjiao (Gentianae Macrophyllae Radix), Huangqin (Scutellariae Radix) (each half liang); Shengdihuang (Rehmanniae Radix) (2 liang); Chishao (Paeoniae Radix Rubra) (1 liang).
The above herbs are ground into fine powder. Form pills using refined honey, sized like paulownia seeds. Take 30 pills with decoction of Wumei (Mume Fructus) at any time, three times daily.

Academician Xu stated: I once read in *Records of the Grand Historian · The Biography of Cang Gong* that Han Nu, a concubine of the King of North Qi, suffered from lower back and waist pain, and alternating chills and fever. All physicians considered it a disease of chills and fever. Cang Gong said: "This illness arises from desiring a man but being unable to obtain him." How did he know she desired a man but could not obtain him? By palpating her pulse, the Liver pulse was wiry and extended beyond the Cun position; thus, he knew the cause. Additionally, the syndrome of heat entering the Blood Chamber (Xueshi) in women, presenting with chills and fever resembling malaria, is discussed in Chapter 10 of this volume.