猪肤一斤
右一味，以水一斗，煮取五升，去滓，加白蜜一升，白粉五合，熬香，和令相得，温
分六服。
【方解】
猪肤者，乃革外之肤皮也。其体轻，其味咸，轻则能散，咸则入肾，故治少阴咽痛，
是于解热中寓散之意也。
【集解】
成无己曰：猪，水畜也。其气先入肾，解少阴之客热。加蜜以润燥除烦，白粉以益气
断利也。
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少阴病二、三日，咽痛者，可与甘草汤，不差，与桔梗汤。
【注】
少阴病二、三日，咽痛无他证者，乃少阴经客热之微邪，可与甘草汤缓泻其少阴之热
也。若不愈者，与桔梗汤，即甘草汤加桔梗以开郁热，不用苦寒者，恐其热郁于阴经
也。
【集注】
喻昌曰：用甘草者，和缓其势；用桔梗者，开提其邪也。此在二、三日，他证未具，
故可用之。若五、六日，则少阴之下利、呕逆诸证皆起，此法又未可用矣。
甘草二两
右一味，以水三升，煮取一升半，去滓，温服七合，日二服。
桔梗一两 甘草二两
右二味，以水三升，煮取一升，去滓，温分再服。
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少阴病，咽中痛，半夏散及汤主之。
【注】
少阴病，咽痛者，谓或左、或右，一处痛也。咽中痛者，谓咽中皆痛也，较之咽痛而
有甚焉。甚则涎缠于咽中，故主以半夏散，散风邪以逐涎也。
【集注】
方有执曰：此以风邪热甚，痰上壅而痹痛者言也。故主之以桂枝怯风也，佐之以半夏
消痰也，和之以甘草除热也，三物者，是又为咽痛之一治法也。
Pig Skin (Zhu Fu), one jin
The above single ingredient is boiled in ten dou of water until five sheng remain. The dregs are removed, and one sheng of white honey and five he of white powder (rice flour) are added. It is cooked until fragrant, mixed thoroughly, and taken warm in six divided doses.
[Formula Analysis]
Pig skin refers to the outer epidermis of the pig's hide. Its nature is light, and its flavor is salty. Being light allows it to disperse, and being salty enters the Kidney channel. Therefore, it treats sore throat caused by Shaoyin disease, embodying the intent of dispersing pathogens within the process of clearing heat.
[Collected Explanations]
Cheng Wuji stated: Pigs are aquatic animals. Their qi first enters the Kidney meridian, resolving exogenous heat in the Shaoyin. Adding honey moistens dryness and eliminates irritability, while adding rice flour benefits Qi and stops diarrhea.
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In Shaoyin disease, if there is a sore throat after two or three days, Gancao Tang (Licorice Decoction) may be administered. If it does not improve, Jiegeng Tang (Platycodon Decoction) should be given.
[Annotation]
In Shaoyin disease, if a sore throat appears after two or three days without other symptoms, it indicates a mild exogenous heat pathogen in the Shaoyin meridian. Gancao Tang (Licorice Decoction) can be used to gently drain the heat from the Shaoyin meridian. If it remains unhealed, Jiegeng Tang (Platycodon Decoction) is given, which is Gancao Tang (Licorice Decoction) with the addition of Jiegeng (Platycodon Root) to open up stagnant heat. Bitter-cold herbs are avoided to prevent the heat from becoming trapped within the Yin meridians.
[Collected Notes]
Yu Chang said: Using Gancao (Licorice Root) moderates the progression of the condition; using Jiegeng (Platycodon Root) lifts and releases the pathogen. This approach is applicable when the disease has lasted two or three days and other symptoms have not yet manifested. However, by the fifth or sixth day, symptoms such as diarrhea and vomiting associated with Shaoyin disease will arise, making this method unsuitable.
Gancao (Licorice Root), two liang
The above single ingredient is boiled in three sheng of water until one and a half sheng remain. The dregs are removed, and seven he is taken warm twice daily.
Jiegeng (Platycodon Root), one liang; Gancao (Licorice Root), two liang
The above two ingredients are boiled in three sheng of water until one sheng remains. The dregs are removed, and the decoction is taken warm in two divided doses.
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In Shaoyin disease, if there is severe pain in the throat, Banxia San Ji Tang (Pinellia Powder and Decoction) is the primary treatment.
[Annotation]
"Throat pain" (Yan Tong) in Shaoyin disease refers to pain in either the left or right side, localized to one area. "Severe throat pain" (Yan Zhong Tong) refers to pain throughout the entire throat, which is more severe than simple throat pain. In severe cases, saliva may adhere to the throat; therefore, Banxia San (Pinellia Powder) is prescribed to disperse wind pathogens and eliminate phlegm/saliva.
[Collected Notes]
Fang Youzhi stated: This describes conditions where severe wind-heat and upward congestion of phlegm cause obstruction and pain. Thus, Guizhi Tang (Cinnamon Twig Decoction) is used as the main agent to dispel wind, Banxia (Pinellia Tuber) assists in resolving phlegm, and Gancao (Licorice Root) harmonizes to clear heat. These three substances constitute another therapeutic method for treating throat pain.