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Qiwei Baizhu San (Seven-Ingredient White Atractylodes Macrocephala Decoction) is most effective in treating prolonged diarrhea due to Spleen deficiency in children. The grandson of He Fengshan, a plasterer from Zhenze, was two years old and had suffered from diarrhea for two months. He presented with fever, poor appetite, sallow complexion, and night terrors during sleep. Pediatricians prescribed herbs such as Qinghao (Artemisiae Annuae Herba), Bian Dou (Dolichoris Semen), Er Qin (Huangqin [Scutellariae Radix] and Huangbai [Phellodendri Cortex]), Hou Po (Magnoliae Officinalis Cortex), Zhi Qiao (Aurantii Fructus), and Chen Pi (Citri Reticulatae Pericarpium), but his condition deteriorated daily. Seeking my treatment, I instructed him to take Qiwei Baizhu San (Dang Shen [Codonopsis Radix] 2 qian, Jiao Baizhu [Fried Atractylodis Macrocephalae Rhizoma] and Fu Ling [Poria] each 2 qian, Zhi Gancao [Prepared Licorice Root] 4 fen, Mu Xiang [Aucklandiae Radix] 4 fen, Wei Gegen [Steamed Puerariae Lobatae Radix] 4 fen, Huo Xiang [Agastaches Herba] 7 fen, Wei Jiang [Steamed Ginger] 3 fen). After four doses, the diarrhea ceased and body temperature normalized. The prescription was then modified by removing Gegen and adding Chao Bian Dou [Stir-fried Dolichoris Semen] 2 qian, Chao Yiyi Ren [Stir-fried Coicis Semen] 3 qian, Sha Ren [Amomi Fructus Rotundus] 3 fen, and Jie Geng [Platycodonis Radix] 4 fen. After another four doses, he recovered completely.

Siling San (Four-Ingredient Poria Decoction) has extremely verified efficacy in treating hernia. Mr. Zhou Ken'an, after recovering from Phlegm-Fire syndrome in the Ding Si year, suddenly developed a testicular mass the size of a chicken egg, which was hard, heavy, and dragging, making walking impossible. Initially, he took hernia remedies such as Chuan Lian Zi (Toosendan Fructus) and Lizhi He (Litchi Seed), which aggravated the pain. He reasoned that while residing in Wujiang that year, he often drank excessive tea at teahouses after consuming alcohol, suggesting that Water Qi had flowed into the Bladder rather than involving the Liver Meridian. He switched to Siling San, and after several episodes of diarrhea, the hernia was completely cured.

*Kechen Yihua* states: "Most coughs result from Fire overacting on Metal (Lung), termed 'Thief Evil,' and are difficult to cure quickly. When Wind-Cold attacks externally, it generates internal Excess Fire, which should be purged urgently. If the opportunity to resolve the exterior is missed, the condition may transform over time, leading to other diseases. Misusing Yin-nourishing (cooling/yin-deficiency) medicines can instead lead to Lao Zhai (consumption disease)." These words are very accurate. It further states: "If it is indeed Deficient Fire, only the method of Zhuang Shui (strengthening Water/nourishing Kidney Yin) applies. However, Yin-nourishing medicines tend to obstruct Qi flow and stagnate Phlegm; this depends on the practitioner's flexibility. Formulas such as Shengmai Liujun Tang (Six Gentlemen Decoction with Shengmai Powder) and Jinshui Liujun Jian (Six Gentlemen Decoction for Metal and Water) are most appropriate." My commentary notes: Jinshui Liujun Jian, used by Zhang Jingyue to treat Lung-Kidney Deficient Cold with Water Flooding transforming into Phlegm, was criticized in *Jingyue Quanshu Fahui* for its chaotic formulation (combining Er Chen Tang with Dihuang [Rehmanniae Radix] and Guibai [Angelicae Sinensis Radix]). Moreover, using Er Chen Tang for Water Flooding transforming into Phlegm is theoretically inconsistent; one should use Dihuang Tang. Regarding the method of strengthening Water, Liujun Tang is also unsuitable. Xue Shengbai recorded a case stating: "This arises because Metal and Water do not support each other, causing chronic cough. Do not merely treat the Lung; the Lung is a Delicate Organ, and treating it directly makes it more deficient. One must not indiscriminately nourish Yin. The prescription uses Zheng Yuzhu [Polygonati Odorati Rhizoma], Chuan Shihu [Dendrobii Nobile Caulis], Tian Xingren [Pruni Armeniacae Semen], Sheng Bian Dou [Fresh Dolichoris Semen], Bei Shashen [Glehniae Radix], and Yun Fushen [Poria with Hostwood]. This far surpasses Shengmai Liujun Tang and Jinshui Liujun Jian." I imitated this method to treat chronic cough with Yin injury, achieving consistent success.

Coughs differ between Cold and Heat patterns and must not be misdiagnosed. For those affected by Cold, presenting with nasal congestion, runny nose, or slight aversion to cold, fresh Ginger and Scallion White are suitable. (Take twice daily; do not use long-term.) For those with Heat involvement, coughing is worse at night, accompanied by throat itching and slight thirst; light salt water is suitable. (Can be taken regularly as tea substitute.) Using these methods at the onset prevents prolonged illness; my family has found them consistently effective.