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The *Huangdi Neijing* (Yellow Emperor's Inner Canon) states: "When the rebellious Qi of the Foot-Taiyin Spleen channel ascends, Huoluan (cholera-like syndrome with sudden vomiting and diarrhea) occurs." It also states: "If heat does not precede, when heat arrives, the body becomes feverish, accompanied by vomiting and diarrhea in Huoluan." This disease arises suddenly, characterized by chaotic and violent vomiting and diarrhea without cessation. However, when children contract this illness, it is often due to exogenous cold-evil combined with food stagnation, leading to a disruption of Yin-Yang harmony, resulting in upper vomiting, lower diarrhea, restlessness, and mental confusion; this constitutes this syndrome.

Generally, the human body possesses the Upper, Middle, and Lower Jiao (Triple Burner). The Upper Jiao receives and accepts water and grain, governing intake but not excretion. The Middle Jiao rots and ripens water and grain, circulating their essence to the Five Zang and Six Fu organs. The Lower Jiao separates water and grain, governing excretion but not reception. Therefore, if pathogenic factors are in the Upper Jiao, vomiting occurs; if in the Lower Jiao, diarrhea occurs; if in the Middle Jiao, both vomiting and diarrhea occur.

Typically, Shi Huoluan (Damp Huoluan), which involves both vomiting and diarrhea, allows pathogenic factors to exit from above and below. Once the turbid stagnation is completely expelled, vomiting and diarrhea cease spontaneously, making treatment relatively easy. In contrast, Gan Huoluan (Dry Huoluan) prevents both vomiting and diarrhea. With six types of pathogenic factors affecting the Spleen and Stomach having no outlet, especially if accompanied by panting, chest fullness, and convulsions, the condition is often incurable, hence termed "difficult to treat." Treatment must carefully distinguish between Cold and Heat patterns; misidentification and incorrect prescription are critical errors. This is the most crucial point.

Gan Huoluan results from the congealing of Cold and Summerheat. Symptoms include inability to vomit or defecate despite the urge, and severe colicky abdominal pain, commonly known as "Jiaochang Sha" (Intestinal Twisting Sha). Cases with irritability, thirst, and excessive drinking belong to the Heat pattern. Ancient methods prescribe Guiling Ganlu Yin (Cassia Twig and Poria Decoction for Moistening the Dryness) [ingredients: Earth-fried Atractylodis Macrocephalae Rhizoma, Poria, Alisma, Gypsum Fibrosum, Flaveded Talcum, Polyporus, Hypocaustum, plus a small amount of Cinnamon Twig]. Cases with cold limbs and absence of thirst belong to the Cold pattern. Ancient methods prescribe Lizhong Tang (Regulate the Middle Decoction) [ingredients: Ginseng Radix, Atractylodis Macrocephalae Rhizoma, Zingiberis Rhizoma, Prepared Licorice Root].

[Author's Note]: Children have weak constitutions and poor tolerance for pain. Contracting Jiaochang Sha makes them particularly prone to complications. Regardless of whether it is Yin Sha or Yang Sha, urgently administer a mixture of salt and Yin-Yang Water (water collected from rain and well water) orally. Simultaneously, have the child lie prone. Dip fingers in warm water and gently tap the popliteal fossa on both knees, known as Weizhong BL-40. Observe closely for the appearance of purple-black spots within the fossa. If present, puncture with a silver needle to release evil blood; symptoms will relieve immediately. The Spleen, Liver, and Kidney Yin meridians all pass through Weizhong BL-40.

Another method involves using soft silk dipped in sesame oil to rub the medial aspect of the elbow creases, known as Quchi LI-11. Scraping until purple rashes appear also provides immediate relief. The Lung, Heart, and Pericardium meridians all pass through Quchi LI-11.

Subsequently, administer decoctions. For abdominal pain with cold hands and feet (Yin Sha), use the formula: Agastache Rhizome 1 qian, Costus Root 8 fen, Magnolia Bark processed with oil 8 fen, Fried Immature Bitter Orange 1 qian, Prepared Licorice Root 5 fen. After decocting, mix with half a pill of Suhexiang Wan (Styrax Pill), finely ground, and take warm. For abdominal pain with warm hands and feet (Yang Sha), use the formula: Raw Lablab Bean 1.5 qian, Magnolia Bark 8 fen, Red Poria 1.5 qian, Amomum Villosum Seed Powder 5 fen, Ginger-processed Coptis Rhizoma 5 fen. Use Lotus Flower Dew 0.5 liang as the vehicle, mixed and taken.