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Instruct the patient to stand upright facing a wall. One person dips their hand in warm water and slaps the popliteal fossa (back of the knee) with the back of the hand dozens of times. If blue-red veins protrude, immediately prick them with a needle to release black blood; the symptoms will stop immediately.

Formula for Treating Huoluan (Cholera-like Disease): Use broomcorn millet panicles that are still intact. If left too long, they will lose their panicles.
Take one handful of the panicles of sorghum brooms, including the branch tips, decoct in water, and take warm; it will cure immediately.

Another Formula:
Agastache Folium (Huoxiang Ye) and Exocarpium Citri Reticulatae (Guang Chenpi) (each 5 qian).
Add two zhong of water, decoct to one zhong, take warm; it will cure immediately.

Garlic (mashed) and soil from the road.
Take one zhan of newly drawn water, mix and take or administer by force-feeding; it will stop immediately.

For treating heatstroke manifesting as thirst with drinking, body fever, dizziness, and fainting.
Gypsum Fibrosum (Shigao) (5 qian), Anemarrhenae Rhizoma (Zhimu) (2.5 qian), Raw Glycyrrhizae Radix et Rhizoma (Sheng Gancao), and Oryza Sativa (Jingmi) (a pinch).
Decoct in water and take. For severe cases, double the dosage.

Crushed juice of Lablab Leaf (Bian Dou Ye) drunk; it will cure immediately.

This condition is most common in summer. It manifests as acute abdominal pain, with lips and fingers turning cyanotic/black.
Use transparent raw Alum (Bai Fan), grind into powder. Take 2 qian per dose. Mix with half a cup of cold water and half a cup of hot water, stir and take; it will cure.
Benevolent people should carry Alum in advance. Whether on long boat/carriage journeys or in the dark, it works promptly. Additionally, pricking the nail beds, arm creases, and leg bends to release black blood is crucial. Strictly avoid ginger soup, tea soup, heavy meats, rice, and wheat noodles. Only after feeling very hungry and after vomiting/diarrhea have persisted for three shichen (6 hours) can one eat congee. This condition must be clearly identified; if it is a Yin syndrome, this method will be ineffective.

Patients with Sha disease (sand/heat stroke toxin) mostly have abdominal pain, though some do not. They suffer from lethargy, distension, and oppression, indescribable in nature, often unrecognized by doctors. Immediately take taro grown in fields, wash clean, and chew. If not Sha disease, it tastes raw and astringent; if it is Sha disease, it tastes exceptionally sweet. Eat another piece, and the illness will resolve suddenly. Tested repeatedly with success. Those with abdominal pain are treated similarly.

White Alum (1 fen), Piper Longum (Hu Jiao) (2 fen), Mirabilite (Mang Xiao) (1 fen).
Grind all into fine powder, mix with salt and vinegar. Spread on the palm of the male's left hand or female's right hand, press tightly against the yin area, cover to keep warm until sweating occurs; then it cures. The effect is miraculous.

(3 qian ground fine).
Swallow with boiling strong liquor; it cures immediately. Have the patient chew raw soybeans beforehand; those who cannot taste the bean flavor have Sha disease.

Heart pain, lower abdominal pain, cyanosis of face and fingers indicates Yin Syndrome.
"Zuo KT Long" refers to White Pigeon Droppings (one large scoop).
Grind into extremely fine powder. Take with one zhong of hot wine, stir well, let settle, and drink at once.

Formula for Lower Abdominal Pain due to Cold-Fire Binding (Commonly known as Yin-Cold, this formula is frequently effective):
Withered Alum (piece the size of a jujube), Scallion White with roots (three segments), Piper Longum (Hu Jiao) (one grain per year of age).
Mix with breast milk from a boy, pound together into pills, place on the umbilicus. After burning one incense stick's time, the pain stops. Avoid cold/raw foods; this is critical.