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After the recovery from measles, chronic cough persists without cessation. When white foam resembling rice paste is expectorated from time to time, it is named Fei Wei (Lung萎/Atrophy, a condition characterized by lung tissue atrophy and functional decline), caused by excessive fire damaging the Metal (Lung). The treatment should nourish blood, tonify qi, protect the Lung, and clear fire. Initially, Jiawei Erdong Tang (Modified Two Asparagus Decoction) is used, followed by Mendong Qingfei Yin (Asparagus Lung-Clearing Decoction). If chronic cough causes pain radiating to the chest and hypochondrium, or if pus and blood are expectorated, or material resembling rice porridge is vomited, this indicates internal toxicity in the Lung, named Fei Yong (Lung Abscess). The treatment should purge heat, resolve phlegm, open and ascend to dissipate, detoxify, and expel pus, with Ningfei Jiegeng Tang (Lung-Calming Platycodon Decoction) as the primary formula. Fei Wei belongs to deficiency of righteous Qi, while Fei Yong belongs to invasion of external pathogens; they must not be treated erroneously. The Maijue (Pulse Classic) states: "If the Cun position pulse is rapid and full, the Lung Abscess has formed; if the Cun position pulse is rapid, deficient, and choppy, it is the form of Lung Atrophy."

Jiawei Erdong Tang (Modified Two Asparagus Decoction)
Tian Dong (Asparagi Radix)
Mai Dong (Ophiopogonis Radix)
Shu Di Huang (Prepared Rehmanniae Radix)
Sheng Di Huang (Rehmanniae Radix)
Jie Geng (Platycodonis Radix)
Kuan Dong Hua (Sonchus Flos)
Bei Mu (Fritillariae Cirrhosae Bulbus)
Yi Yi Ren (Coicis Semen)
Gua Lou Ren (Trichosanthis Semen)
Sha Shen (Glehniae Radix)
Zi Wan (Asteris Radix)
Gan Cao (Glycyrrhizae Radix et Rhizoma)

Mendong Qingfei Yin (Asparagus Lung-Clearing Decoction)
Mai Dong (Ophiopogonis Radix)
Tian Dong (Asparagi Radix)
Zhi Mu (Anemarrhenae Rhizoma)
Bei Mu (Fritillariae Cirrhosae Bulbus)
Jie Geng (Platycodonis Radix)
Nian Zi (Lepidii Semen)
Xing Ren (Armeniacae Semen Amarum)
Dong Hua (Sonchus Flos)
Sang Bai Pi (Mori Cortex)
Di Gu Pi (Lycii Cortex)
Ma Dou Ling (Aristolochiae Fructus)
Gan Cao (Glycyrrhizae Radix et Rhizoma)
Add 100 grains of late rice

Ningfei Jiegeng Tang (Lung-Calming Platycodon Decoction)
Jie Geng (Platycodonis Radix)
Bei Mu (Fritillariae Cirrhosae Bulbus)
Zhi Ke (Aurantii Fructus Immaturus)
Xing Ren (Armeniacae Semen Amarum)
Gua Lou Gen (Trichosanthis Radix, raw)
Fang Feng (Saposhnikoviae Radix)
Sang Bai Pi (Mori Cortex)
Yi Yi Ren (Coicis Semen)
Zhi Mu (Anemarrhenae Rhizoma)
Di Gu Pi (Lycii Cortex)
Gan Cao Jie (Glycyrrhizae Radix et Rhizoma with nodes)
Ting Li Zi (Lepidii Fructus)
Wu Wei Zi (Schisandrae Chinensis Fructus)
Add fresh ginger as a guide
In the initial stage, add Fang Feng, remove Huang Qin and Wu Wei Zi. If cough is severe, add Bai He. If body heat is present, add Chai Hu and Huang Qin. If urination is difficult, add Mu Tong and Deng Xin Cao. If defecation is difficult, add Zhi Jun (prepared Rheum palmatum root and rhizome). If irritability and hemoptysis occur, add Mao Cao Gen. If chest pain is severe, add Ren Shen and Bai Zhi.

Bai Ji Mo (Polygonati Rhizoma Powder) for treating rotting and shedding of lung lobes. Use one liang of pure, clean Polygonati Rhizoma powder, divided into three doses. Take one dose with warm water to relieve pain.
After the second dose and throughout the course until the third dose is completed, use one pig lung, add one liang of Sichuan pepper inside, cook and eat it. Avoid iron vessels. For cough due to phlegm-fire, use one pig lung with two liang of Polygonati Rhizoma, cook and eat three times, and it will heal spontaneously.

Zao Jia Wan (Gleditsiae Sinensis Pill) for treating Lung Abscess when all other medicines fail. Scrape off the skin and strings of Gleditsiae Sinensis, roast with butter, grind into powder, make pills with honey, and take three pills mixed with jujube paste in decoction.