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Discussion states: Xi Sou (cough with wheezing sound in the throat) refers to a condition where coughing is accompanied by excessive phlegm in the chest. The phlegm accumulates in the throat, collides with Qi, and produces a "ya-xia" (wheezing/choking) sound with each breath, hence the name Xi Sou.
Treatment should regulate the Lung Meridian and add formulas that eliminate phlegm and break down fluid retention.

For long-standing Xi Sou with sounds in the throat, where attacks force the patient to lie flat and unable to rise, Shegan Wan Formula:
Shegan (Radix Belamcandae, 1 liang) Banxia (Rhizoma Pinelliae Praeparatum, washed ten times with decoction, stir-fried dry, 1 liang 1 fen) Ganjiang (Rhizoma Zingiberis Preparatum, processed until cracked) Kuandonghua (Flos Farfarae, calyx removed, baked dry) Zhaojia (Fructus Gleditsiae Preparatum, peel and seeds removed, roasted) Chenpi (Pericarpium Citri Reticulatae, soaked in water, white pith removed, baked, each 1 liang) Bubu (Herba Stemnonidis, baked dry) Wuweizi (Fructus Schisandrae Chinensis, selected clean, each 1 liang 1 fen) Xixin (Herba Asari, roots and leaves removed) Beimu (Bulbus Fritillariae Cirrhosae, heart removed, stir-fried until slightly yellow) Baifuling (Poria Cocos, black skin removed) Yuliren (Semen Pruni Persicae, skin and tips removed with water, double kernels ground into paste, each 1 liang)
The above twelve ingredients. First, crush the first eleven ingredients, sift finely into powder, and grind together with Yuliren until uniform. Form pills with refined honey, size of Sophora japonica seeds. Take seven pills on an empty stomach with warm water, gradually increasing to fifteen pills. Twice daily.

For long-standing Xi Sou with sounds in the throat, Yuan Gen Bai Pi Wan Formula:
Yuanhua Gen Bai Pi (Cortex Radicis Genkwa, chopped and stir-fried dry) Banxia (Rhizoma Pinelliae Praeparatum, washed five times with water, stir-fried dry) Shegan (Radix Belamcandae) Bubu (Herba Stemnonidis) Wuweizi (Fructus Schisandrae Chinensis, selected clean, each 1 liang 1 fen) Ganjiang (Rhizoma Zingiberis Preparatum, processed until cracked) Ziwan (Radix Asteris Tatarici, roots and soil removed) Kuandonghua (Flos Farfarae, calyx removed) Baifuling (Poria Cocos, black skin removed) Zhaojia Su (Fructus Gleditsiae Preparatum with su, roasted, peel and seeds removed) Xixin (Herba Asari, roots and leaves removed) Beimu (Bulbus Fritillariae Cirrhosae, heart removed, lightly stir-fried)
The above twelve ingredients. Crush and sift into powder, form pills with refined honey, size of Sophora japonica seeds. Take three pills on an empty stomach with porridge drink, gradually increasing to five pills. Stop when effective. If diarrhea is excessive, use Fangfeng Gancao Decoction to counteract toxicity.

For Xi Sou with loss of voice and sounds in the throat, Huang Qin Wan Formula:
Huangqin (Radix Scutellariae, chopped) Gualougen (Radix Trichosanthis, chopped, each 1 liang 1 fen) Gancao (Radix Glycyrrhizae Preparatum, roasted and chopped, 2 liang) Dahuang (Radix et Rhizoma Rhei, steamed, chopped, stir-fried dry, 1 liang) Xingren (Semen Armeniacae Amarum, skin and tips removed with water, double kernels ground into paste, 2 liang) Mayaxiao (Natrii Sulfas, boiled and ground fine, 1 liang 1 fen)
The above six ingredients. First, crush the first four ingredients, sift finely into powder, and grind together with Xingren and Mayaxiao until uniform. Form pills with refined honey, size of Sophora japonica seeds. Take fifteen pills on an empty stomach with warm water. Twice daily.

For Xi Sou with mutual traction producing sounds, Xiang Mo Wan Formula:
Mo (Ink stick, burned until smoke ceases) Gansui (Radix Kansui) Tinglizi (Semen Lepidii et Descurainiae, stir-fried purple, each half liang) Qianhu (Radix Peucedani) Dahuang (Radix et Rhizoma Rhei, chopped and stir-fried, each 1 liang 1 fen) Badou (Semen Crotonis, skin and heart removed)
The above six ingredients. First, crush the first five ingredients, sift finely into powder, and grind together with Badou until uniform. Form pills with refined honey, size of Sophora japonica seeds. Take with white rice drink. Take three pills on an empty stomach. After three days, take another dose. If vomiting and diarrhea do not stop, stop them with cold plain water. After vomiting and diarrhea cease, consume white porridge.

For Xi Sou with sounds in the throat, Xingren Wan Formula:
Xingren (Semen Armeniacae Amarum, skin and tips removed with water, double kernels stir-fried dry and ground into paste, 1 liang) Mayaxiao (Natrii Sulfas, boiled and ground fine, half liang) Gancao (Radix Glycyrrhizae Preparatum, roasted and chopped, 1 liang) Dahuang (Radix et Rhizoma Rhei, steamed and chopped)
The above four ingredients. First, crush Gancao and Dahuang into powder, and grind together with Xingren and Mayaxiao until uniform. Form pills with refined honey, size of Sophora japonica seeds. Take fifteen pills on an empty stomach with warm water. Twice daily.

For thirty-year Xi Sou, Langdanzi San Formula:
Langdanzi (Semen Hyoscyami, fresh) Muxiang (Radix Aucklandiae) Xionghuang (Realgar, without stones, ground fine, each half liang)
The above three ingredients. First, crush the first two ingredients, sift finely into powder, and grind together with Xionghuang until uniform. Take one sheet of blue paper, first coat with sheep fat, then sprinkle the powder, then seep fat again, and roll it up. In the morning, burn it on an empty stomach until smoke appears, inhale the smoke and swallow ten times, three times daily.

For Xian Sou (phlegm-foam cough), stopping ya-xia sounds, resolving wind-phlegm, benefiting the throat and diaphragm, Zhuitan Wan Formula:
Baifan (Alumen, 8 liang, calcined in a clay vessel, ground fine, wrapped in paper and buried in yellow earth overnight to remove fire toxicity, then add subsequent herbs) Banxia (Rhizoma Pinelliae Praeparatum, washed seven times with water, baked dry, pounded into powder) [Note: Original text omits two ingredients here, listed as "four ingredients" total]
The above four ingredients. Crush and sift into powder, mix with wheat flour paste to form pills, size of Sophora japonica seeds. Take fifteen pills after meals with ginger juice.

For Lung affected by Cold Evil, unceasing cough, ya-xia wheezing and oppression, mutual traction producing sounds, chest and diaphragm fullness, loss of appetite, Kuantonghua Tang Formula:
Kuantonghua (Flos Farfarae) Zhimu (Rhizoma Anemarrhenae, baked, each 2 liang) Banxia (Rhizoma Pinelliae Praeparatum, soaked in alum water for seven days, baked dry) Xingren (Semen Armeniacae Amarum, soaked in water, skin and tips removed, bran-stir-fried and ground, each 4 liang) Gongsangye (Folium Mori Dry, 2 liang) Mahuang (Herba Ephedrae, roots and joints removed, blanched in boiling water to remove foam, baked dry, 8 liang) Gancao (Radix Glycyrrhizae Preparatum, roasted and chopped) Beimu (Bulbus Fritillariae Cirrhosae, heart removed) Ejiao (Colla Corii Asini, stir-fried until dry, each 4 liang)
The above nine ingredients, coarsely crushed and sieved. Take three qianbi per dose, with one sheng of water, add three slices of Shengjiang, decoct together until reduced to 70%, strain, and take warm after meals before retiring.

For adults and children with ya-xia cough, Ci Huang Wan Formula:
Ci Huang (Orpiment, half liang, ground) Dansha (Cinnabaris) Qianshuang (Plumbi Subcarbonas) Nifen (Calomel, each 1 qian, ground)
The above four ingredients. Grind together finely. Mix with glutinous rice porridge to form pills, size of mung beans. Take three pills per dose with Ge Fen (Tridacna Shell Powder) drink, three times daily.

For adults and children with upper asthma and cough, ya-xia sounds, phlegm-dampness oppression, Bailong Wan Formula:
Banxia (Rhizoma Pinelliae Praeparatum, large ones ten pieces, washed with water to remove slipperiness, processed with Shengjiang juice, cut and baked dry, pounded into powder) Sha (Realgar, free of stones, 1 qian, ground) Badou (Semen Crotonis, eight grains, skin, heart, and membrane removed, ground without releasing oil. The above three ingredients are mixed with jujube flesh to form a mass, wrapped in raw white flour dough, baked until dough is cooked, discard dough) Nifen (Calomel) Fenshuang (Calomel/White Precipitate?, 1 qian each) Longnao (Borneolum Syntheticum, 1 qian, ground)
The above six ingredients. Mix and pound uniformly. Form pills, size of sesame seeds. Take five to seven pills per dose with Gancao soup, infants take one or two pills.

For ya-xia cough, Huhuanglian Tang Formula:
Huhuanglian (Radix Coptidis Chinensis) Zhaojia (Fructus Gleditsiae, peel removed, coated with su, roasted until yellow) Bai Binglang (Semen Arecae) Yuliren (Semen Pruni Persicae, skin and tips removed with water, double kernels stir-fried dry and ground into powder, each 1 liang)
The above four ingredients, coarsely crushed and sieved. Take three qianbi per dose, with one sheng of water, decoct until reduced to 70%, strain, and take warm. Three times daily, at any time.

For accumulation of Qi in the Lung, unceasing xi-sound in the throat, all due to Lung deficiency allowing labor-Qi to invade. Or cases of Cold in the Stomach and Heat above the Diaphragm, all suitable for this formula, Ziwan Xingren Jian Formula:
Ziwan (Radix Asteris Tatarici, roots and soil removed, 1.5 liang) Xingren (Semen Armeniacae Amarum, half sheng, skin and tips removed, double kernels separately ground fine) Shengjiangzhi (Jucius Zingiberis Recens, 3 he) Dihuangzhi (Jucius Rehmanniae Recens, 5 he) Su (Butyrum, 2 liang)
Dazao (Flesh of Fructus Jujubae, half sheng) Beimu (Bulbus Fritillariae Cirrhosae, heart removed, 3 liang) Baifuling (Poria Cocos, black skin removed) Wuweizi (Fructus Schisandrae Chinensis, stir-fried) Renshen (Radix Ginseng) Gancao (Radix Glycyrrhizae Preparatum, roasted and chopped) Jiegeng (Radix Platycodonis, chopped and stir-fried)
The above fourteen ingredients. Crush and sift eight ingredients into powder, mix with various natural juices, as well as Su, honey, Xingren, etc. Decoct in a copper or silver vessel over moderate heat, stirring frequently until uniform. Boil for 110 cycles to form a syrup. Then steam over a steamer for three to five rounds. Take one spoonful after meals. Lie supine for a moment after taking, slowly swallow the medicine, and take again at night.