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Grind the cinnamon into a fine powder, and use refined honey to make pills the size of a longan fruit. Each time, dissolve one pill in newly drawn cold water for oral administration. (From *Taiping Huimin Heji Jufang*).

Cinnamon Decoction for Thirst: Drinking this preparation in summer relieves vexation and thirst, benefits Qi, and resolves phlegm-fluids. Take one tael of cinnamon powder, one sheng of white honey, and two dou of water. First, decoct until one dou remains. After cooling, pour into a new porcelain jar, then add the two ingredients mentioned above, and stir two or three hundred times. Cover the mouth with one layer of oiled paper first, then seal with seven additional layers. Remove one layer of sealing paper each day; after seven days, open it. The aroma is fragrant and sweet, with an exquisite character. Take half a zhan (approx. 125 ml), decoct until half a zhan remains, and drink. Effect is immediate.

*Waitai Miyao* records: Cinnamon powder, taken orally with wine, one fangcun bi (a measure approx. 1-2 grams) at a time, administered six or seven times within a short period.

For heart and abdominal distension and pain, with shortness of breath as if suffocating: Take two liang of cinnamon, add one sheng and two he of water, boil down to eight he, and take all at once. (From *Zhouhou Beiji Fang*)

For cold hernia and heart pain: Cold limbs, complete loss of appetite. Grind Guixin (Cinnamon Heart) into powder, one qian, and take with hot wine to achieve effect. (From *Taiping Shenghui Fang*)

For postpartum heart pain: Evil blood rushing to the heart, chest tightness and suffocation. Take three liang of Guixin, grind into powder, and form pills the size of a Chinese chestnut using dog bile. Take one pill with hot wine each time. (From *Taiping Shenghui Fang*)

For postpartum mass-related pain: Cinnamon powder, taken orally with wine, one fangcun bi, to achieve effect. (From *Zhouhou Beiji Fang*)

For retained dead fetus: Two qian of cinnamon powder. When labor pains are intense, mix with warm urine from a young boy and take orally. This formula is named "Guanyin Jiusheng San" (Guanyin Life-Saving Powder); it also treats difficult labor and malpresentation. Add a small amount of Moschus (She Xiang), take with wine. Compared to mercury-based medicines, it does not harm the body. (From He Shi Fang)

For unstoppable metrorrhagia: Guixin (Cinnamon Heart), quantity unspecified, calcined in a clay pot until carbonized but retaining its nature, then ground into powder. Take one or two qian on an empty stomach with rice water. This formula is named "Shenyingsan". (From *Furen Liangfang*)

For reverse waist blood pain: Cinnamon powder, mixed with vinegar and applied topically. Reapply when dry. (From *Zhouhou Beiji Fang*)

For hematemesis and hematochezia: *Zhouhou Beiji Fang* records: Use Guixin ground into powder, taken orally with water, one fangcun bi. Wang Shuhe stated: This is a syndrome where Yin invades Yang; cool-natured medicines should not be used. Zhao Xuande of Nanyang suffered sudden hematemesis; symptoms stopped after two doses. His nephew was also cured after two doses.

For chronic dysentery with red and white discharge in children: Use Cinnamon (peeled, roasted with ginger juice until purple-black) and Coptidis Rhizoma (Stir-fried with Evodiae Fructus) in equal parts. Grind into powder. Administer with decoction of Perilla Leaf and Papaya. This formula is named "Jinsuo San". (From *Quanyou Xinjian*)

For pediatric enuresis: Cinnamon powder and rooster liver in equal parts. Pound and form pills the size of a soybean. Take with warm water, twice daily. (From *Waitai Miyao*)

For infant umbilical swelling: Often caused by injury from dampness. Heat Guixin (Cinnamon Heart) and apply as a hot compress four or five times daily. (From Yao Hezhong's Formula)

For unilateral swelling of external genitalia: Cinnamon powder, mixed with water to the volume of one fangcun bi, and applied topically. (From *Meishi Fang*)

For abdominal distension due to eating fruits, regardless of age: Cinnamon powder, mixed with rice to form pills the size of mung beans. Swallow five or six pills, taken with plain boiled water. If not resolved, take again. (From *Jingyan Fang*)

For trauma from blows and falls, blood stasis causing confusion, and body pain: Spicy cinnamon ground into powder, taken orally with wine, two qian. (From *Zhizhi Fang*)

For mastitis with swelling and pain: Guixin (Cinnamon Heart) and Glycyrrhizae Radix et Rhizoma, each two fen; Aconiti Lateralis Radix Preparata, one fen (prepared). Grind into powder, mix with vinegar, and apply topically, covering with paper. The pus turns into water; miraculous effect. (From *Zhouhou Beiji Fang*)

For double tongue and thrush: Cinnamon powder, mixed with ginger juice and applied topically. (From Tang Shi's *Baojian*)

For various snake bites: Guixin (Cinnamon Heart) and Trichosanthis Fructus in equal parts. Grind into powder, store in a bamboo tube tightly sealed. Upon snake bite, apply immediately. If not sealed tightly, it will be ineffective.

For toxicity from closed-mouth peppers: Breath nearly ceased, or vomiting white foam, body cold. Quickly decoct cinnamon juice and take orally, and drink heavily one or two sheng of newly drawn water. (From *Meishi Fang*)

Leaves
[Therapeutic Actions] Crush and soak in water to wash hair, removing dirt and dispelling wind (Li Shizhen).