割母猪尾滴血于窍中自出。《易简方》云∶一人因热取凉睡园野，寤着有蛇入口中，挽
不出，用刀破蛇尾，入花椒二三粒裹定，须臾自出。
《本草衍义》云∶有人被蛇伤良久，已昏困。有老僧见之，以酒调末药一二钱灌之遂
苏，及以药渣涂咬处良久，复灌一服，其苦皆去。问之，乃五灵脂、雄黄二味尔。有中一切
蛇虫之伤，用之无不验也。
南海地多蛇而广府尤甚。某侍郎为帅，闻雄黄能禁制此毒，乃买数百两，分贮绢囊挂
于寝室四隅，经月余。一日卧榻外常有黑汁，从上滴下，臭甚，使人穿承尘窥之，则巨蟒
横其上死腐矣。于是尽令撤去障蔽，蛇死者，长丈许大如柱，旁又得十数条，皆蟠 成窠。
宅屋内所驱放者，合数百。自是官舍清宁。
《集验方》云∶山林人家须备雄黄，每出时用梧桐大一丸，烧烟起，以薰脚布草履袍袖
之类，有毒不敢侵害，百邪远避。
半夏、白矾等分为末，以醋和敷伤处。
蝎怕胆矾，蛇怕雄黄。又云南方人家不可无雄黄，北方人家不可无胆矾。予亲见北方
人货蝎螫药者，以活
蝎数十枚，置囊中为样，取蝎安额上，或咬口中逼之螫，额舌出血而立肿，即用胆矾
搓之，立消，观者肯买。可见胆矾制竭毒第一药也。
一方∶鸡口沥出涎涂之瘥。
一方∶南星、白矾为末敷伤处。
Cut the tail of a sow and drip its blood into the orifices (mouth/nose) or wound of the victim; the toxin will naturally exit. *Yijian Fang* (Simple Formulas) records: A person slept in the wild to cool off due to heat, and upon waking, found a snake had entered his mouth and could not be pulled out. He used a knife to cut open the snake's tail, inserted two or three grains of Zanthoxylum fruit (Huajiao), tied it securely, and after a short while, the snake came out on its own.
*Bencao Yan Yi* (Supplement to Materia Medica) records: Someone was bitten by a snake for a long time and became comatose and exhausted. An old monk saw this, mixed one or two qian of powdered medicine with wine, and administered it orally, whereupon the patient revived. The monk then applied the medicinal dregs to the bite site for a long time and administered another dose, after which all suffering ceased. Upon inquiry, it turned out to be only two ingredients: Trogopterus Dung (Wulingzhi) and Realgar (Xionghuang). For all kinds of snake and insect bites, this method is invariably effective.
The Nanhai region has many snakes, especially Guangzhou Prefecture. A certain Vice Minister serving as a military commander heard that Realgar (Xionghuang) could suppress this venom, so he bought several hundred taels, stored them separately in silk bags, and hung them in the four corners of his bedroom. After more than a month, one day, black fluid dripped from above outside the bed, smelling extremely foul. Having someone lift the ceiling to inspect, they found a giant python lying dead and rotting across it. Consequently, all obstructions were removed. The dead snakes measured over one zhang in length and were as thick as pillars; dozens more were found nearby, coiled into nests. Hundreds of snakes driven out from within the residence were accounted for. From then on, the official residence was peaceful and quiet.
*Jiyan Fang* (Collected Proven Prescriptions) records: Households in mountainous and forested areas must keep Realgar (Xionghuang) on hand. When going out, take a pill-sized amount (the size of a paulownia seed), burn it to produce smoke, and use it to fumigate feet, straw sandals, robes, sleeves, etc. Toxic creatures dare not harm, and all evil influences stay away.
Pinellia Rhizome (Banxia) and Alum (Baifan) in equal parts are ground into powder, mixed with vinegar, and applied to the injured area.
Scorpions fear Alum (Danfan); snakes fear Realgar (Xionghuang). Furthermore, households in the southern regions of Yunnan cannot do without Realgar (Xionghuang), while households in the northern regions cannot do without Alum (Danfan). I personally witnessed northern vendors selling remedies for scorpion stings. They placed dozens of live scorpions in a bag as samples, took one scorpion and placed it on the forehead or forced it into the mouth to sting. Bleeding occurred on the forehead and tongue, followed by immediate swelling. They then rubbed the affected area with Alum (Danfan), causing the swelling to disappear instantly. Observers were willing to buy. This demonstrates that Alum (Danfan) is the premier drug for counteracting scorpion venom.
Another prescription: Apply saliva from a chicken's mouth to the affected area for recovery.
Another prescription: Grind Arisaema Rhizome (Nanxing) and Alum (Baifan) into powder and apply to the injured area.