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The *Huangdi Zhenjing* (Yellow Emperor's Classic of Acupuncture) states: "When essence and qi are depleted, deafness occurs." The Kidney is the Foot-Shaoyin meridian, which stores essence and qi and connects to the ear. The ear is the gathering point of numerous meridians. If essence and qi are harmonious, the Kidney becomes strong, and the ears can perceive the five tones. However, if labor and injury damage the blood and qi, combined with exposure to wind-cold, damaging the Kidney and causing depletion of essence, this depletion of essence leads to deafness. Nevertheless, among the Five Zang and Six Fu organs and the Twelve Principal Meridians, there are collateral vessels connecting to the ear. When the yin and yang meridian qi merge and converge, this convergence causes rebellion in the organ qi, a condition named "Jue" (Reversal). When qi clashes with the vessels in the ear, it results in deafness. In cases of Kidney disease where essence depletion causes deafness, the clinical manifestation includes black discoloration of the cheeks and zygomatic bones. In cases where the Hand-Shaoyang meridian qi rebels and causes deafness, the symptom is a buzzing sound within the ear. In cases where the Hand-Taiyang meridian qi rebels and causes deafness, the symptom is deafness accompanied by a sensation of fullness of qi in the ear.

[Shaoshen San] (Burnt Kidney Powder) treats deafness.
Fuzi (Prepared Aconite Lateral Root), peeled, 1 liang; Chuanjiao (Sichuan Pepper), 1 liang, remove the eyes; Cishi (Magnetitum), 1 liang, quenched in vinegar seven times, ground, processed by water flotation.
Grind the above into powder. Take one pig kidney, remove the fascia, cut finely, add Congbai (Scallion White) and Xiebai (Allium Macrostemon Bulb), each 1 fen, medicinal powder 1 qian, Yanhua (Salt Flower) 1 zi, mix evenly. Wrap in ten layers of wet paper, bury in ash fire, and roast until cooked. Chew thoroughly on an empty stomach, take down with thin porridge after resolving alcohol effects (or taken with wine and thin porridge). Efficacy seen in ten days.

[Xijiao San] (Rhinoceros Horn Powder) treats wind-toxin and heat stagnation, phlegm obstruction in the chest and heart, virtual deafness in both ears, heavy head and dizzy eyes, with miraculous effect.
Xijiao Jie (Rhinoceros Horn Shavings); Ganjuhua (Chrysanthemi Flos); Qianhu (Peucedani Radix), remove the radicle; Zhike (Aurantii Fructus), stir-bran fried until yellow; Shichangpu (Acori Tatarinowii Rhizoma); Zexie (Alismatis Rhizoma); Qianghuo (Notopterygii Rhizoma et Radix); Mutong (Akebiae Caulis); Shenggan Dihuang (Rehmanniae Radix Recens dried), each half liang; Maimendong (Ophiopogonis Radix), 1 liang, remove the heart (can also be 2 liang); Gancao (Glycyrrhizae Radix et Rhizoma), 2 qian, honey-fried.
Grind the above into powder. Each dose is 3 qian, decoct with one zhan of water until reduced to 0.5 zhan, strain dregs. Take warm after meals.

[Fushen San] (Poria Spirit Powder) treats upper jiao wind-heat, sudden deafness and tinnitus, fullness and urgency in the four limbs, epigastric and diaphragmatic distension and fullness, drowsiness and mental cloudiness.
Fushen (Poria with Hostwood); Qianghuo (Notopterygii Rhizoma et Radix); Manjingzi (Viticis Semen); Fangfeng (Saposhnikoviae Radix); Shichangpu (Acori Tatarinowii Rhizoma); Yiyiren (Coicis Semen); Huangqi (Astragali Radix); Wuweizi (Schisandrae Chinensis Fructus), each half liang; Maimendong (Ophiopogonis Radix), remove the heart, 1 liang; Gancao (Glycyrrhizae Radix et Rhizoma), 2 qian, honey-fried.
Grind the above into powder. Each dose is 3 qian, decoct with one zhong zhan of water and half a fen of Shengjiang (Zingiberis Rhizoma Recens) until reduced to 0.5 zhan, strain dregs. Take warm after meals.