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Cough is a condition caused by the lung contracting cold pathogenic factors. The Lung governs Qi and corresponds to the skin and hair (Pí Máo). When an external pathogen initially injures the body, it first lodges in the skin and hair; therefore, the Lung is affected first.

The manifestations of cough arising from the five Zang organs are as follows:
In spring, if the Liver is affected, coughing is accompanied by pain in the right hypochondrium, radiating faintly to the back and shoulders. In severe cases, movement is restricted, and any movement triggers coughing. In winter, if the Kidney is affected, there is mutual pulling pain between the lower back and waist. In severe cases, coughing produces sputum. This is referred to as "Five Zang Cough."

If cough originating from the Five Zang organs persists without healing, it transmits to the Six Fu organs:
When the Stomach is affected (transmitted from the Spleen), the symptom of Stomach cough is coughing accompanied by vomiting; in severe cases, roundworms may be expelled.
When the Gallbladder is affected (transmitted from the Liver), the symptom of Gallbladder cough is vomiting bile upon coughing.
When the Large Intestine is affected (transmitted from the Lung), the symptom of Large Intestine cough is fecal incontinence during coughing.
When the Small Intestine is affected (transmitted from the Heart), the symptom of Small Intestine cough is passing flatus simultaneously with coughing.
When the Bladder is affected (transmitted from the Kidney), the symptom of Bladder cough is urinary incontinence during coughing.
When the San Jiao (Triple Burner) is affected (due to prolonged coughing), the symptom of San Jiao cough is abdominal fullness accompanied by coughing and loss of appetite.

All these conditions result from cold qi accumulating in the Stomach and opening up at the Lung, causing rebellious Lung Qi, leading to excessive phlegm and saliva, and facial edema.

Additionally, there are ten types of cough:
1. Wind Cough: Triggered by speaking, preventing the completion of sentences.
2. Cold Cough: Caused by drinking cold water or eating cold food; cold qi rebels upward along the Lung meridian, combining internally and externally to induce cough.
3. Branch Cough (Zhi Sou): Coughing accompanied by distending pain in the chest and diaphragm.
4. Liver Cough: Coughing with pulling pain in the hypochondrium.
5. Heart Cough: Coughing with tearing and fluid secretion, pulling towards the abdomen and stomach.
6. Spleen Cough: Continuous flow of saliva.
7. Lung Cough: Deafness during coughing, pulling pain in the waist and umbilicus.
8. Kidney Cough: Pulling pain in the lower abdomen.
9. Gallbladder Cough: Hemoptysis (coughing up blood).
(Note: The original text contains formatting errors or omissions for the tenth type, but the visible entities are translated above.)

Diagnosis: Palpating the Cun Kou pulse on the right hand, a floating pulse indicates a Yang syndrome. If the pulse is floating and large, the prognosis is good (survival); if the pulse is deep, small, hidden, or concealed, the prognosis is poor (death).

Chronic cough arises because Lung Qi is extremely deficient. Once Lung Qi is deficient, it is constrained by wind-cold pathogens, resulting in persistent coughing over months or years. This is due to disharmony of Yin and Yang.

To treat chronic cough with obstructive Qi sensation in the chest, Baihe San (Lily Bulb Powder) is indicated.
Ingredients: Baihe (Bulbus Lilii, 1 liang), Zisuzi (Fructus Perillae, 3 fen, slightly stir-fried), Sangbaipí (Cortex Morus Radicis, 1 liang, sliced), Ziwan (Radix Asteris, 3 fen, radix removed), Gancao (Radix Glycyrrhizae, 0.5 liang, honey-fried until slightly red and sliced), Kuandonghua (Flos Farfarae, 3 fen), Hanfangji (Radix Stephaniae Tetrandrae, 3 fen), Beimu (Bulbus Fritillariae Cirrhosae, 3 fen, roasted until slightly yellow), Xingren (Semen Armeniacae Amarum, 0.5 liang, soaked in hot water, skin and pointed ends removed, double-kernel seeds avoided, bran-roasted, rhizome removed).
Preparation: Crush the ingredients and sieve into a coarse powder. Take 5 qian per dose. Add 1 large cup of water, 0.5 fen of fresh Ginger (Shengjiang), and 3 dates. Decoct until reduced to 0.5 cup. Strain and take warm.

For chronic cough that does not resolve, Mulur San (Morus Alba Bark Powder) is indicated.
Ingredients: Zaogai Baipi (Cortex Mori Albas, 2 liang, coated with butter and roasted until slightly yellow), Beimu (Bulbus Fritillariae Cirrhosae, 1 liang, roasted until slightly yellow), Zhike (Fructus Aurantii, 1 liang, bran-roasted until slightly yellow, placenta removed), Mahuang (Herba Ephedrae, 1 liang, roots and nodes removed), Baihe (Bulbus Lilii, 1 liang), Gancao (Radix Glycyrrhizae, 0.5 liang, honey-fried until slightly red and sliced).
Preparation: Crush and sieve into a coarse powder. Take 3 qian per dose. Add 1 medium cup of water and 0.5 fen of fresh Ginger. Decoct until reduced to 0.6 cup. Strain and take warm.

For persistent chronic cough, Ziwan San (Aster Root Powder) is indicated.
Ingredients: Ziwan (Radix Asteris, 3 liang, radix removed), Kuandonghua (Flos Farfarae, 3 liang).
Preparation: Crush and sieve into a coarse powder. Take 3 qian per dose. Add 1 medium cup of water and 0.5 fen of fresh Ginger. Decoct until reduced to 0.6 cup. Strain and take warm. Take 3-4 times daily.

For chronic Lung Qi cough with thick, sticky phlegm and saliva, and急促 upper Qi (asthma/dyspnea), Gejie Wan (Gecko Pill) is indicated.
Ingredients: Gejie ( Gecko, 1 pair, head and tail intact, coated with butter and roasted until slightly yellow), Hanfangji (Radix Stephaniae Tetrandrae, 0.5 liang), Beimu (Bulbus Fritillariae Cirrhosae, 0.5 liang, roasted until slightly yellow), Tiantingli (Semen Lepidii et Descurainiae, 0.5 liang, stir-fried between papers until purple), Renshen (Radix Ginseng, 3 fen, rhizome removed), Chifuling (Poria Cocos with Red Cortex, 3 fen), Chenpi (Pericarpium Citri Reticulatae, 0.5 liang), Wuweizi (Fructus Schisandrae, 0.5 liang).
Preparation: Grind into fine powder. Mix with refined honey and pound 500-700 times. Form pills the size of Sophora seeds. Take 30 pills after meals with warm rice broth.

For chronic cough with rebellious Qi that does not resolve, Zisuzi Wan (Perilla Fruit Pill) is indicated.
Ingredients: Zisuzi (Fructus Perillae, 1 liang), Wuweizi (Fructus Schisandrae, 1 liang), Luobozǐ (Semen Raphani, 1 liang, slightly stir-fried), Sangbaipí (Cortex Morus Radicis, 1 liang, sliced), Zaogao (Fructus Gleditsiae Sinensis, 3 liang, black skin removed, coated with butter, roasted until yellow and charred, seeds removed).
Preparation: Grind into fine powder. Mix with refined honey and pound 200-300 times. Form pills the size of Sophora seeds. Take 20 pills after meals with date-boiled rice broth.

Another formula for chronic cough that does not resolve:
Ingredients: Tuifen (Leporis Faeces, 1 liang, dried), Pengsha (Borax, 3 fen), Hutonglü (Trogopteri Dung, 1 fen).
Preparation: Grind into fine powder. Mix with refined honey to form pills the size of Sophora seeds. Take 30 pills with rice broth. Take 3-4 times daily.

For all chronic coughs that do not resolve, Tiantingli Wan (Lepidium Seed Pill) is indicated.
Ingredients: Tiantingli (Semen Lepidii et Descurainiae, 1 liang, stir-fried between papers until purple), Renshen (Radix Ginseng, 3 fen, rhizome removed), Chifuling (Poria Cocos with Red Cortex, 3 fen), Gejie (Gecko, 1 pair, head and tail intact, coated with butter and roasted until slightly yellow).
Preparation: Grind into fine powder. Mix with date flesh to form pills the size of Sophora seeds. Take 30 pills with rice broth. Take 3-4 times daily.

For chronic cough with emaciation and loss of appetite:
Ingredients: Baiziren (Semen Biotae, 1 liang), Wulingzhi (Trogopteri Dung, 1 liang), Tiantingli (Semen Lepidii et Descurainiae, 1 liang, stir-fried between papers until purple), Xiamatou (Bufo Head), Xingren (Semen Armeniacae Amarum, 1 liang, soaked in hot water, skin and pointed ends removed).
Preparation: Grind into fine powder. Mix with refined honey to form pills the size of Sophora seeds. Take 20 pills with warm rice broth. Take 3-4 times daily.

For chronic Lung Qi cough, Lujiaojiao Jian (Deer Antler Glue Decoction/Paste) is indicated.
Ingredients: Lujiaojiao (Corpus Cornu Cervi, 4 liang, crushed and roasted until yellow and dry), Chifuling (Poria Cocos with Red Cortex, 1 liang), Ziwan (Radix Asteris, 1 liang, radix removed), Zisuzi (Fructus Perillae, 2 liang, slightly stir-fried), Beimu (Bulbus Fritillariae Cirrhosae, 1 liang, roasted until slightly yellow), Dihuangzhi (Jugulum Rehmanniae Recens, adequate amount).
Preparation: Combine all ingredients except Dihuangzhi. Mix equally with Dihuangzhi juice. Stir well. Simmer slowly in a silver vessel until it becomes a paste. After meals, hold half a date-sized piece in the mouth to dissolve.

Another prescription:
Ingredients: Baibugen (Radix Stemona, 5 jin, fresh).
Preparation: Crush and press to extract juice. Add 1 jin of honey. Simmer until it resembles maltose syrup. Take 1 spoonful per dose, mixed with warm rice broth. Take 3-4 times daily.

Another prescription:
Ingredients: Kuandonghua (Flos Farfarae, 1 liang).
Preparation: Grind into fine powder. Mix with refined honey to form pills the size of half a date. Wrap one pill in silk, hold in the mouth, and swallow the saliva. Take 4-5 times daily.

Miraculous effective formula for chronic cough that does not resolve:
Ingredients: Zaogao (Fructus Gleditsiae Sinensis, 5 tings, non-borer, black skin removed, coated with butter, roasted until yellow and charred, seeds removed).
Preparation: Grind into fine powder. Mix with refined honey to form pills the size of Sophora seeds. Take 10 pills after meals with Sangbaipi (Morus Root Bark) decoction.