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Jinu (skin bleeding spots) is the "blood sweat" mentioned in the *Huangdi Neijing* (Yellow Emperor's Inner Canon). There were no effective empirical prescriptions in ancient times, but recent medical cases have extremely effective ones. I record them for future reference. Mao Daké stated in *Bianyi Jingyan Ji* (Collection of Convenient and Empirical Experiences): A patient had pores on his left arm resembling needle holes, suddenly splashing blood, accumulating to the size of a washbasin; it flowed day and night continuously. His complexion was pale and he lacked qi energy. I used finely ground powder of stir-fried Pangolin Scales (Chao Shanjia Pian), covered it with a cloth, and tied it tightly, which stopped the bleeding immediately. He then took several doses of Buxue Tang (Blood-Nourishing Decoction) and recovered. Later, I treated an old farmer who had a needle-hole-like wound above his scrotum bleeding until it filled a foot basin. Various medicines were ineffective, and he believed he would surely die. I applied the previous method, and he recovered instantly. It is truly a miraculous prescription. Gu Xiaolan stated in *Wumen Zhiyan Lu* (Records of Medical Cases in Wu Men): My colleague, Mr. Yang, suddenly experienced unceasing bleeding from the hairline at the back of his head. Everyone was horrified. I knew this was Jinu and instructed him to use only Huangqin (Scutellariae Radix, 黄芩), soaked in water and applied topically, which cured him immediately, and it never recurred. I also saw two cases involving the chest and back, which were also effectively treated with the same method. This prescription was transmitted by my friend Fan Dongshu for treating nasal bleeding from the bridge of the nose; applying it to other areas was also effective, yet it was not mentioned in texts like *Zhunseng*, demonstrating the difficulty of writing books.

The wife of Bucao Xu Xinmu suffered from Bini (nosebleed) since childhood. After marriage, it recurred every year. In severe cases, blood overflowed from her ears, eyes, mouth, and nose, stopping only when pale yellow fluid appeared. She had tried all external and internal treatments without success. Before each episode, her forehead would feel hot, and the breath from her nose was very hot. For nearly twenty years, whenever she felt heat in her nose, Xu Xinmu administered Qingzao Jiufei Tang (Clearing Dryness and Saving the Lung Decoction) by Yu Jiayan. After two or three doses, she felt the heat in her nose subside and the bleeding stop. If the medication was delayed slightly, there was only slight redness. This is because this formula clears heat from the Lung and Stomach. Specifically, Renshen (Ginseng Radix et Rhizoma, 人参) was replaced with Xiyangshen (American Ginseng Radix, 西洋参), or fresh Dihuang (Rehmanniae Radix Recens, 鲜生地) was added. When the condition stabilized, Gan Dihuang (Rehmanniae Radix Preparata, 干生地) was used. Yu himself stated that this formula does not use any bitter-cold herbs, fearing that bitterness might transform into fire and dryness. This is the subtlety of formulating prescriptions, and physicians should not arbitrarily add ingredients.

Medical texts generally state that spontaneous sweating (Zihan) belongs to Yang deficiency, and night sweating (Daohan) belongs to Yin deficiency. I examined this: He Xichi stated in *Yi Que*: In Shaoyang disease, initially there is no sweat, but after transmitting to the Yangming stage, spontaneous sweating occurs. Does this mean the exterior was excess initially and deficiency later? He further stated: When awake, Qi circulates in the Yin aspect; when asleep, Qi circulates in the Yin aspect (Note: Context implies Wei Qi entering interior). If a person has deficient Exterior Yang, during sleep when Qi moves inward, the exterior loses protection and becomes even more loose. Even if internal fire is not strong, the Yang Qi gathering inside may trigger its weak fire, causing sweating. Thus, spontaneous sweating is not solely due to Yang deficiency, nor is night sweating solely due to Yin deficiency.