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[Formula Song] When an ulcerated wound is mistakenly contaminated with horse sweat, causing injury, the area surrounding the wound becomes red, swollen, hot, and painful with a purple hue. One should urgently use a Bian stone (a type of surgical stone for pricking) to prick the swollen area and release dark purple blood. Chewing dried plum (Wumei) until it becomes a paste and applying it to the wound is effective. If the patient experiences irritability, heat, and fear that the toxin is attacking the abdomen, Ma Chi Xian Tang (Purslane Decoction) should be administered in amounts proportional to the patient's strength. In cases where donkey saliva enters the wound, the green skin of winter melon (Donggua), ground into powder, should be applied to the wound.

[Note] This condition arises when toxins from horse sweat enter an unhealed ulcerative wound, causing sudden redness, swelling, heat, pain, and purple discoloration around the wound edges. It is appropriate to urgently prick the swollen area with a Bian stone to allow dark purple blood to flow out, then chew dried plum (Wumei) and apply it to the wound. If the patient suffers from restlessness and fever, fearing the toxin has entered the abdomen leading to death, one should urgently decoct purslane (Ma Chi Xian) in strong wine and have the patient drink it until intoxicated for efficacy. However, purslane is cold and slippery in nature. For patients with unhealed ulcers and deficient Qi and Blood who have been exposed to this horse sweat toxin, the dosage must be adjusted according to whether the person is robust or weak, using either 1 liang or 5 qian. Additionally, if donkey saliva enters the wound, the symptoms are identical to those of horse sweat toxicity. One should take the green skin found under winter melon slices, dry it, grind it into powder, and apply it topically; alternatively, decocting it for washing is also suitable. For severe toxicity, drinking purslane wine can produce immediate results.

[Formula Song] Upon being bitten by a snake, immediately drink vinegar. It is still advisable to tie a rope tightly around the affected area, then administer a mixture of Trogopterus Dung (Wu Ling Zhi) and Realgar (Xiong Huang). Once the swelling subsides and the wound closes, normal function will return.

[Note] For anyone bitten by a snake, drink one to two bowls of good quality vinegar immediately to prevent the toxin from spreading with the blood, and tie a rope around both ends of the injured area. If the patient becomes unconscious or drowsy, mix 5 qian of Trogopterus Dung (Wu Ling Zhi) and 2.5 qian of Realgar (Xiong Huang) into a fine powder, mix with wine, and administer 2 qian orally. After a short while, yellow fluid will exude from the bite site; once the fluid is exhausted, the swelling will subside. Sprinkle Realgar powder on the wound, which will close and heal.

[Formula Song] For centipede bites, use a rooster. Hold the rooster upside down to collect its saliva, dip your hand in it, and smear the saliva onto the wound to stop pain immediately. In severe cases, drinking fresh chicken blood is most appropriate.

[Note] For such injuries, hold a rooster upside down for a moment, dip your hand in the saliva from the rooster's mouth, and smear it on the wound; the pain will cease immediately. In severe cases, drinking fresh chicken blood while it is warm produces immediate effects.

[Formula Song] For scorpion stings, quickly obtain a large snail, crush it, and apply it to stop pain immediately. For silkworm bites, crush the root of Ramie (Zhu Gen), extract the juice, and apply it to the affected area for recovery.

[Note] For any scorpion sting, take one large snail, crush it, and apply it; the pain will stop immediately. If a snail is unavailable at the moment, squeeze out the toxic fluid from the sting site and urgently apply a heated plaster, which can also relieve pain. For silkworm bites, crushing Ramie root (Zhu Gen) to extract juice and applying it leads to recovery.