地数五，土求其平，母使木梗。
督邮徐毅得病，先生往省之，毅谓先生曰∶“昨使医吏刘租针胃管讫，便苦咳嗽，欲卧
不安。”先生曰∶“刺不得胃管，误中肝也，食当日减，五日不救。”果如先生言。
按∶人谓咳嗽从肺，不知肝风煽动，使肺不舒，亦足致嗽，所谓木刑金也。人谓减食由
胃，不知肝气下行，使胃作胀，不能进食，所谓木克土也。人谓不眠由肾，不知肝为血海，
肝病血虚，势难安眠，所谓木耗水也。胃属土，地属五，五为地数之终，终而不能复始，故
五日不救也。仙传数语，足以当千万部医书，有如是者。（孙思邈注）
先啼后痢，乳多冷气。
凡儿啼，哺以乳则止。乳寒则胃不舒，既入贲门，不能上吐，则为下痢。东阳陈叔山小
男二龄，得疾下痢，常先啼，日以羸困，以问先生。先生曰∶“其母怀躯，阳气内养，乳中
虚冷，儿得母寒故也。治法宜治其母，儿自不时愈。”乃与以四物女菀丸（即四物汤）十日
即愈。
按∶四物汤为妇人要药，有活血通经之功。佗以此法治病，即所云∶“子有病治其母也。”
凡治儿病，药由母服，方取妇科，法自此始。（孙思邈注）
水性涨，毒自散。
彭城夫人夜入厕，虿螫其手，呻吟无赖。先生令温汤近热，渍其手中，卒可得寐。但令
人数为易汤，不使微冷，达旦而愈。
按∶人受蜂刺或蛇毒，多用白矾、雄黄、香油及各种草药敷之，竟不见效，或反肿痛。
从未有以热水渍之者，即用热水亦不知更易，是以无效。今观先生之法，简而易，且奏效速，
可
Earth corresponds to the number five; Earth seeks balance, and the Mother prevents Wood from becoming obstructed.
The Inspector Xu Yi fell ill, and the Master went to visit him. Xu Yi said to the Master, "Yesterday, after the medical clerk Liu Zu finished needling the stomach tube, I suffered bitterly from coughing and could not lie down in peace." The Master said, "The needle did not enter the stomach tube accurately but mistakenly injured the Liver. Food intake will decrease day by day, and there will be no rescue within five days." The result was exactly as the Master predicted.
Commentary: People believe that coughing originates from the Lung, unaware that Liver Wind stirring up causes Lung Qi to become uncomfortable, which is sufficient to cause coughing; this is what is called "Wood punishing Metal" (Liver Wood attacking Lung Metal). People believe that reduced appetite stems from the Stomach, unaware that descending Liver Qi causes abdominal distension in the Stomach, making one unable to eat; this is what is called "Wood overcoming Earth" (Liver Wood controlling Spleen/Earth). People believe that insomnia stems from the Kidney, unaware that the Liver is the Sea of Blood; Liver disease leads to Blood deficiency, making it difficult to sleep due to the circumstances; this is what is called "Wood depleting Water" (Liver Wood consuming Kidney Water). The Stomach belongs to Earth, and Earth corresponds to the number five. Five is the end of the Earth numbers; once ended, it cannot restart, hence there is no rescue within five days. These few words passed down from immortals are sufficient to replace tens of millions of medical books, as evidenced by such cases. (Commentary by Sun Simiao)
Crying precedes dysentery, with excessive cold qi in the milk.
Whenever an infant cries, feeding them milk stops the crying. If the milk is cold, the Stomach Qi becomes uncomfortable. Once it enters the贲门 (cardia), if it cannot be vomited upwards, it results in dysentery. Chen Shushan of Dongyang had a two-year-old son who suffered from dysentery, often crying first and growing increasingly emaciated and exhausted each day. He consulted the Master. The Master said, "When his mother was pregnant, Yang Qi nourished internally, causing the milk to become deficient and cold. The child contracted the mother's coldness. The treatment method should focus on treating the mother, and the child will recover spontaneously over time." Therefore, Siwu Nuwan Wan (Siwu Decoction / Four Substance Pill) was administered, and he recovered in ten days.
Commentary: Siwu Tang is an essential medicine for women, possessing the function of invigorating blood and unblocking menstruation. Hua Tuo used this method to treat illness, which is referred to as: "If the child is ill, treat the mother." Whenever treating pediatric diseases, the medication is taken by the mother, and the formulas are selected from gynecology; this therapeutic principle originated here. (Commentary by Sun Simiao)
Water nature rises, and toxins naturally disperse.
Madam of Pengcheng entered the toilet at night and was stung by a scorpion on her hand, groaning in pain without relief. The Master ordered warm water, nearly hot, to soak her hand, allowing her to finally fall asleep. He instructed people to change the water frequently, ensuring it did not cool down even slightly, until dawn when she recovered.
Commentary: When humans suffer from bee stings or snake venom, white alum (Bai Fan), realgar (Xiong Huang), sesame oil, and various herbal medicines are commonly applied, yet they often prove ineffective or even exacerbate swelling and pain. There has never been a method using hot water soaking. Even when hot water is used, failure to replace it promptly renders it ineffective. Observing the Master's method now, it is simple and easy, yet achieves rapid results, which can...