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Canjie Tang (Cocoon Decoction) can comprehensively treat the three types of Xiao Ke (Wasting-Thirst Syndrome): Shang Xiao (Upper Wasting-Thirst), Zhong Xiao (Middle Wasting-Thirst), and Xia Xiao (Lower Wasting-Thirst). Use the shells of silkworm cocoons, or select those that have formed clumps of silk floss. Boil them in water to make a decoction, and drink it frequently as tea. After drinking for fourteen days (two sevens), there is no case that does not recover. This is because this substance shares the same Qi as the horse, both belonging to Wu Fire (Fire element associated with the Horse zodiac sign). In the human body, it corresponds to Shao Yin Jun Huo (Ministerial Fire of Shaoyin Meridian). It is effective at subduing the fire in the Bladder, guiding Yin fluids upward to moisten the mouth, thereby stopping thirst. Ignorant people believe this is caused by fire in the Bladder, but they do not realize that the fire in the Bladder, unable to be retained, has already been expelled through urination. The issue lies only in its inability to ascend and moisten, resulting in a lack of Jin Ye (Body Fluids) and dry mouth. Have you not observed how Daoist practitioners utilize the Three Pure Fires? They regard the Heart as the Sovereign Fire, the Ming Men (Gate of Vitality) as the Ministerial Fire, and the Bladder as the Civilian Fire; ignition must begin from the Bladder, after which the Ministerial Fire and Sovereign Fire, along with the three fires, are activated simultaneously. By refining Yin demons and steaming with true fire, sweet dew naturally descends. How could there be thirst?

For Xiao Ke syndrome characterized by excessive day-and-night drinking, take one pig stomach, wash it extremely clean, insert five qian of Dan Dou Chi (Prepared Soybean) inside, sew it shut with thread, and boil until very soft. Drink the extracted juice. The stomach meat can also be eaten.

Another prescription: Boil pig blood into a clear soup without adding salt or oil. Drinking large amounts yields excellent results. This substance is good at nourishing Yin and descending fire, specifically acting on the Blood level. For those with Spleen Qi deficiency, drink it every other day to prevent diarrhea.

The Classics state: Ying Qi (Nutritive Qi) is refined from food and water. It harmonizes within the Five Zang Organs and spreads throughout the Six Fu Organs, allowing it to enter the vessels. It is generated by the Spleen, commanded by the Heart, stored by the Liver, distributed by the Lung, and excreted by the Kidney. Its moistening and unblocking functions all originate here. Hematemesis (vomiting blood) occurs due to the rebellion of Ying and Wei Qi (Defensive Qi). The Heart is the master of Blood; the Lung is the master of Qi. Qi provides warmth, while Blood provides nourishment. They nourish the entire body and irrigate tendons and vessels. With normal ascending and descending movements, everything remains smooth and comfortable. If affected externally by the Six Excesses (pathogenic factors) or internally by dietary injury, Qi stagnates and fails to move, causing Blood to stagnate and fail to nourish. Thus, extreme heat causes surging and bleeding, leading to reckless hemorrhage. Moreover, excess Qi transforms into Fire. When Fire invades Blood, the Heat causes reckless movement, rushing upward and resulting in hematemesis. Therefore, among children, hematemesis is most often caused by food retention, because the Yangming channels are abundant in Qi and Blood. If constrained heat forces inward, it inevitably causes reckless movement of Ying Blood. Hence, seventy to eighty percent of pediatric hematemesis cases belong to Stomach Heat. There are also infants still in swaddling clothes who vomit blood, mostly due to thick curtains and warm rooms where heat accumulates, or from overconsumption of spicy foods that flow into the breasts. After the infant drinks milk, accumulated warmth generates heat. Extreme heat surges upward, causing some to vomit blood, suffer epistaxis (nosebleeds), hematuria (blood in urine), or hematochezia (blood in stool). If hemoptysis (coughing up blood) persists for a long time, it is caused by Lung deficiency and should be treated by protecting the Lung and nourishing Yin.

The Lung receives Qi from all vessels, and the Liver commands Blood from all meridians. Damage to the Spleen and Stomach leads to deficiency of Ying and Wei Qi, causing Blood to leave its normal pathway and bleed recklessly. If there is Qi deficiency with mental fatigue and pale lips lacking redness, cold-natured herbs must be avoided. Instead, use Sijunzi Tang (Four Gentlemen Decoction) first to rescue the Spleen. Once the Spleen is solid, the bleeding will stop.

In cases of Blood deficiency, the spirit remains unchanged, and the lips and tongue appear normal. Use Siwu Tang (Four Substances Decoction) added with Renshen (Ginseng) and Baizhu (Atractylodes Macrocephala). Tonifying Qi is the method to generate Blood.

Hematemesis is caused by accumulated heat in the Stomach, where fire forces Blood to move recklessly, causing it to be vomited from the mouth. One should clear Stomach Fire to guide Blood back into the vessels. Since Blood belongs to Yin, and Yin governs descent, bleeding from the lower body is considered favorable (Shun), while bleeding from the upper body is unfavorable (Ni). Use Qingwei San (Stomach-Clearing Powder).

Epistaxis (nosebleed) occurs when Spleen Heat transmits to the Lung, causing deficient Fire to flare upward. Blood travels through the clear orifices, exiting through the nose. Use Jiawei Sijunzi Tang (Modified Four Gentlemen Decoction).

If coughing is accompanied by hemoptysis, this indicates that Water and Fire between the Heart and Kidneys are not ascending and descending properly. Uncontrolled Fire flares up, leaving the Lungs and Stomach dry and withered. Use Ziyin Jianghuo Tang (Nourish Yin and Descend Fire Decoction). Do not mistakenly treat this as Tongzi Lao (Pediatric Tuberculosis/Wasting-Thirst).

For hematochezia (blood in stool), if blood appears before the stool, it is called Jinxue (Near Blood), originating from the Large Intestine; use Huanglian Jiedu Tang (Coptis Decoction for Resolving Toxicity). If blood appears after the stool, it is called Yuanxue (Far Blood), originating from the Stomach or Small Intestine; stop it with Qingwei San. For persistent cases that do not stop, use Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction) added with Hulan (Picrorhiza Root).