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Commentary states: To regulate infantile typhoid fever causing body heat, dizziness and heaviness of the head and eyes, loss of appetite, conditions complicated by fright or food stagnation, alternating chills and fever, obstruction and difficulty in urination and defecation, irritability and thirst, profuse cold sweating, as well as chest and diaphragm fullness and urgency caused by food retention injury and stagnation, greenish-yellow complexion with emaciation, high fever day and night, and also to treat heat syndromes such as wind-cold injury, summerheat injury, fright convulsion, external pathogenic invasion (Ke Wu), and kidney-type malnutrition syndrome (Gan Qi), all are suitable to be primarily treated with Tuojia San (Shell-Removing Powder). Alternatively, Dalianqiao Tang (Great Lonicera Decoction) combined with Dahuang (Rhubarb Rhizome) and Shenxiong Wan (Divine Xiong Pill) can be taken to treat infantile fright wind and accumulated heat causing sluggish urination and defecation, which yields particularly rapid effects. Another method is the Navel-Covering Method (Yan Qi Fa): take one scallion with roots (unwashed, with soil attached), one slice of fresh ginger, twenty-one fermented soybeans (Douchi), and two spoonfuls of salt; grind them together into a paste, shape into a cake, warm it, and apply it to the umbilicus, securing it firmly with cotton cloth. After a while, if qi circulation penetrates through, bowel movement and urination will naturally resume; otherwise, prepare another dose. For urinary obstruction, the general methods from the previous two questions can also be applied. Tuojia San is described in Question 53. Dalianqiao Tang is described in Question 3 under Dalianqiao Yinzi (Great Lonicera Drink). Shenxiong Wan is described in Question 20. Yan Qi Fa (Navel-Covering Method) treats urinary and fecal obstruction.

Ingredients for Navel-Covering Method: Haishi (Terebralia palustris Shell, 49 grains), Congen (Scallion Root with soil, 7 stalks), Heidou (Black Soybean, 7 grains), Yanshao (Salt, a little). Grind all ingredients together into a paste, shape into a cake, warm it, place on the umbilicus, and secure tightly with cloth. After a long time, it will naturally become unobstructed.

Chao Yuanfang stated: Various types of Lin syndrome (strangury) in children are caused by heat in the Kidney and Bladder. The Bladder and Kidney are interior-exteriorly related and both govern water metabolism. Water enters the Small Intestine, descends into the Bao (uterus/bladder), travels through the yin organs, and is excreted as urine. If there is heat in the Bladder, body fluids overflow internally, the water passages become obstructed, and fluid stagnates and accumulates in the Bao. If Kidney qi is hot, it causes涩 (astringency/sluggishness), leading to impaired water passage and dribbling urine, hence termed "Lin". The symptoms include small amounts of frequent urination, acute pain in the lower abdomen radiating to the umbilicus. There are also five types of Lin: Shi Lin (Stone Strangury), Qi Lin (Qi Strangury), Re Lin (Heat Strangury), Xue Lin (Blood Strangury), and Han Lin (Cold Strangury), each with distinct manifestations.

Shi Lin (Stone Strangury) involves passing sand or stones during urination. When the Kidney is invaded by heat, impurities in urine transform into stones. This causes pain in the urethral meatus, inability to pass urine suddenly, frequent pain radiating to the interior of the Bladder with a sense of urgency, and the passage of sand/stones via the urinary tract.

Qi Lin (Qi Strangury) occurs when the Kidney and Bladder are affected by heat qi from the Lung, causing distension. Qi, overwhelmed by heat, flows into the Bladder, where it becomes congested and fails to disperse, resulting in lower abdominal fullness. Since water cannot be freely promoted and drained, urination becomes sluggish, forming Lin syndrome.

Re Lin (Heat Strangury) arises when heat qi from the Triple Burner transmits to the Kidney and Bladder, flowing into the Bao and forming Lin syndrome.

Xue Lin (Blood Strangury) results from excessive heat; when severe, it causes hematuria. The Heart governs blood; when heat is extreme, blood scatters and deviates from its normal channels,渗溢 (oozing and overflowing) into the Bao, forming Blood Strangury.

If it is Re Lin, the initial symptom is chills/shivering followed by urination. If children consume too much cold, the Lower Jiao is affected, cold qi enters the Bao and contends with healthy qi. The struggle between cold qi and healthy qi causes shivering; once the cold qi dissipates, urination can proceed.

The treatment principle for Lin syndrome is that Jinsha San (Golden Sand Powder) acts immediately. Formulas such as Wuling San (Five-Ingredient Powder with Poria) and Mutong San (Akebia Decoction) can be used with flexible adjustments to ensure recovery. Daochi San (Guide Out Red Powder) is also effective. Referencing these with the principles of adult medicine (Da Fang Mai) for medication selection is advisable.

Jinsha San: Treats infantile dribbling and obstruction of urine. Ingredients: Yujin (Curcuma Radix), Haijinsha (Lygodium Spore), Huashi (Talcum), Gancao (Licorice Root) in equal parts. Grind into powder. For a three-year-old child, administer one qian, mixed with Luoshu Tang (Broom Tea) or Dengxin/Mutong Tang (Juncus/Akebia Decoction). Winter Melon (Donggua) is most effective for treating infantile urinary obstruction, dribbling, and thirst.

Lixiao San: Treats various types of infantile Lin syndrome obstruction and pain in the urethra. Ingredients: Mutong (Akebia Caulis), Gancao (Licorice Root), Baihaierhua (Vincetoxicum officinale root/Vitex fruit, also known as Wangbuliuxing), Huisu (Coriander), Huashi (Talcum), Haijinsha (Lygodium Spore), Shanzhi (Gardenia Fruit), Binglang (Areca Seed) in equal parts. Cut into pieces. Take two qian per dose, add half zhan of water, decoct until one-third remains, strain, and drink.

Mutong San is described in Question 74.