（香木）透毒外出
枫香（专入肝脾）。系枫膏脂所成。结而为香。故曰枫香。又曰白胶香。按枫性最疏通。
故木
易蛀。外科用以透毒。金疮末敷即效。筋断即续。齿颊肿痛。烧灰揩牙甚工。咳唾脓血。同
药服之即止。皆取透发病气之意。（时珍曰。枫香松脂。皆可乱乳香。其功虽次于乳香。而
亦仿佛不远。）故能见其皆治也。以 水煮二十沸。入冷水中。揉扯数十次。晒干用。
（兽）拔毒外脱
象牙（专入肌肉）。味甘性寒。按象性主刚猛。而牙则善脱。故凡皮肉间有形滞物。及
邪魅惊
悸风痫。并恶疮内有毒未拔者。服之立能有效。以其具有脱性。故能以脱引脱耳。是以痈肿
不解。用牙磨水服之。并挫末蜜调。涂之即效。诸铁竹木刺入肉。刮削煎汤。温服即愈。诸
骨鲠入于喉。刮下薄片频服即吐。不吐再服。以吐出为度。象皮味咸气温。专治金疮不合。
用皮 灰存性敷之。亦可熬膏入散。
（隰生）蟾酥拔风火热毒之邪蟾蜍散热泻热外拔内攻
蟾酥（专入肌肉）。即蟾蜍。（俗名癞虾蟆。）眉间内有白汁者是也。味辛气温。有毒。
能拔一
切风火热毒之邪使之外出。盖邪气着人肌肉。郁而不解。则或见为疔肿发背。阴疮阴蚀。疽
疠恶疮。故必用此辛温以治。盖辛主散。温主行。使邪尽从汗发。不留内入。而热自可以除
矣。但性有毒。止可外治取效。（如发背未成者。用活蟾蜍系疮上。半日。蟾必昏愦。置水
中救其命。再易一个。三日则毒散矣！势重者剖蟾蜍合瘀上。不久必臭不可闻。再易二三次
即愈。慎勿以微物见轻也。）即或用丸剂。亦止二三四厘而已。多则能使毒人。其用作丸投
服。亦宜杂他药内入。如牛黄明矾乳香没药之类。毋单服也。故书载拔诸毒。只宜用酥一钱
。白面二钱。朱砂少许。作锭。谅病轻重酌与。不可尽服。又治背发无名等毒。取酥三五分
。广胶水化。米醋入铫火化。乘热手刷不已。以散为度。刻玉涂之。等于刻蜡。房术用之更
善。总皆外科夺命之功。（一句括尽。）轻用烂人肌肉。至若蟾蜍气味辛寒。凡症瘕积块。风
犬咬伤。小儿疳积。瘟疫发斑。疮疽发背。用之与酥略同。以其辛有发散之能。寒有逐热之
功。外敷固见神功。内服除去头足腹肠垢。亦能去积除热。如风狗咬伤。用蟾蜍后足捣汁
生
食。先于患人顶心拔去血发三四茎。于小便内见沫。其毒即解。发背初肿。用活蟾数个更易
系于肿上。（法详上）则其毒亦散矣！（时珍曰。蟾蜍土之精也。上应月魄而性灵异。穴土食
虫。又伏山精。制蜈蚣。故能入阳明经退虚热。行湿气。而为疳病痈疽诸疮要药也。）总皆
具有外拔内攻之力。勿轻用也。蟾酥以油单纸裹眉裂之。酥出纸上。阴干用。蟾蜍焙干。去
皮爪。酒浸去肉用。
（香木类）透发毒邪外出
枫香（专入肝、脾二经）。是由枫树的膏脂凝结而成的。聚集后形成香气，所以称为枫香。又被称为白胶香。据考证，枫树的性质最为疏通流畅，因此木材容易生虫蛀蚀。外科常用它来透发毒邪，金创出血时研末外敷立即见效。筋腱断裂可使其接续。牙齿和脸颊肿痛，烧成灰后擦牙效果很好。咳嗽吐脓血，配合药物服用即可停止。这些都是取其透发病气之意。（李时珍说：枫香和松脂都可以冒充乳香，虽然功效稍次于乳香，但也相差不远。）所以能看见它对各种病症都有疗效。用水煮二十沸，放入冷水中，揉搓拉扯几十次，晒干后使用。
（兽类）拔除毒邪使之外脱
象牙（专入肌肉层）。味道甘平，性质寒凉。据考察，象的性质刚猛，而象牙善于脱落。所以凡是皮肉之间有有形滞碍之物，以及邪魅引起的惊悸、风痫等症，还有恶疮内部有毒邪未拔除的，服用后立即有效。因为它具有“脱”的特性，所以能以脱引脱。因此对于痈肿不消散的情况，用象牙磨水服用，并挫成粉末用蜂蜜调和涂抹，立即见效。各种铁、竹、木刺扎入肉中，刮下象牙削片煎汤，温服即愈。各种鱼骨卡在喉咙里，刮下象牙薄片频繁服用，就会吐出，如果不吐再服，以吐出为限度。象皮味道咸，性质温，专门治疗金创伤口不愈合。将象皮烧成炭存性后外敷，也可以熬制成膏加入散剂中使用。
（隰生类·两栖动物）蟾酥拔除风火热毒之邪；蟾蜍散热泻热，外拔内攻
蟾酥（专入肌肉层）。即来自蟾蜍（俗名癞蛤蟆）。眉间内有白色汁液的就是。味道辛，性质温，有毒。能拔除一切风火热毒之邪使其外出。因为邪气附着在人的肌肉中，郁结而不解散，就会出现疔肿、发背、阴疮、阴蚀、疽、疠、恶疮等症状。所以必须用这种辛温的药物来治疗。辛主发散，温主通行，使邪气全部从汗液发出，不留在体内深入，那么热邪自然可以清除。但是性味有毒，只适合外用取效。（例如发背尚未形成的，用活蟾蜍绑在疮上，半天后，蟾蜍必定昏迷，放入水中救活它的命，再换一个，三天后毒邪就散了！病情重的剖开蟾蜍合在瘀血处，不久必然臭不可闻，再换两三次就好了。千万不要轻视微小的生物。）即使做成丸剂服用，也只限于二三厘到三四厘而已。多了会使中毒。如果用作丸剂投服，也应该混杂其他药物一起进入，如牛黄、明矾、乳香、没药之类，不要单独服用。所以医书记载拔除各种毒邪，只用蟾酥一钱，白面二钱，朱砂少许，做成锭剂。根据病情的轻重斟酌给予，不能全部服完。又治疗背部的无名肿毒等，取蟾酥三五分，用广胶水化开，加入米醋在锅中加热熔化，趁热用手刷涂不停止，直到干燥为止。刻玉涂抹它，等于刻蜡一样顺滑。房中术使用它效果更好。总之都是外科夺命的功效。（一句话概括尽了。）轻率使用会烂人肌肉。至于蟾蜍的气味辛寒，凡是症瘕积块、疯狗咬伤、小儿疳积、瘟疫发斑、疮疽发背，使用它与蟾酥大致相同。因为它辛有发散的功能，寒有逐热的功效。外敷固然见神效，内服除去头、足、腹、肠的污垢后，也能去积除热。如被疯狗咬伤，用蟾蜍的后足捣汁生吃。先在患者头顶心拔掉三四根带血的头发，在小便中看到泡沫，其毒邪就解除了。发背初起肿胀，用几个活蟾蜍更换绑在肿处。（方法详见上文）那么毒邪也就散了！（李时珍说：蟾蜍是土的精华，上应月魄而性情灵异。穴居土中食虫，又伏于山精之中，能克制蜈蚣，所以能入阳明经退虚热，行湿气，成为治疗疳病、痈疽等各种疮疡的要药。）总之都具有外拔内攻的力量，不要轻易使用。蟾酥用油纸单包裹眉毛裂开的地方，酥液流出到纸上，阴干后使用。蟾蜍焙干，去掉皮和爪子，酒浸后去肉使用。
(Wood Category) Expelling Toxicity Outwards
Fengxiang (Cortex Liquidambaris / Sweetgum Resin) (Specifically enters the Liver and Spleen meridians). It is formed from the gum resin of the maple tree. It condenses to form fragrance, hence named Fengxiang. Also known as Baijiaoxiang (White Gum Resin). According to records, the nature of the maple wood is most unblocking and smooth, therefore the wood is prone to insect damage. In surgery, it is used to expel toxicity; when applied as powder to traumatic wounds, it is effective immediately. It can reconnect severed tendons. For swelling and pain in the teeth and cheeks, applying the ash after burning is very effective. For coughing up pus and blood, taking it with other medicines stops it immediately. All these utilize its intention of penetrating and releasing pathogenic qi. (Li Shizhen said: Fengxiang and pine resin can both be used to adulterate Ruxiang (Boswelliae Fructus / Frankincense). Although its efficacy is slightly inferior to Ruxiang, it is not far different.) Thus, it can be seen to treat various conditions. Boil in water for twenty boils, immerse in cold water, knead and pull dozens of times, then dry in the shade for use.
(Beast Category) Drawing Toxicity Outwards
Xiangya (Elephant Tusk) (Specifically enters the muscle layer). The taste is sweet, and the nature is cold. According to observations, the elephant's nature is fierce and rigid, while the tusk has the property of shedding. Therefore, for any有形 (tangible) stagnation between skin and flesh, as well as evil influences causing palpitations, wind-phlegm convulsions, and malignant sores with internal toxicity that has not been drawn out, taking it yields immediate effectiveness. Because it possesses the property of "shedding," it can draw out toxicity through shedding. Thus, for unresolved carbuncles and swellings, grinding the tusk in water and drinking it, or crushing it into powder mixed with honey and applying it topically, is effective immediately. For iron, bamboo, or wooden splinters embedded in the flesh, scraping and boiling slices of tusk in soup and drinking it warm leads to recovery. For fish bones stuck in the throat, frequently swallowing thin slices scraped from the tusk induces vomiting; if not vomited, take again until expelled, using expulsion as the limit. Xiangpi (Elephant Skin) tastes salty and is warm in nature, specifically treating non-healing traumatic wounds. Applying the carbonized ash (preserving its nature) topically is effective. It can also be boiled into a paste and added to powders.
(Humid-land Category / Amphibian) Chan Su (Toad Venom) Draws Out Wind, Fire, and Heat Toxicity; Chan Yu (Toad) Clears Heat and Drains Fire, Acting Externally and Internally
Chan Su (Toad Venom) (Specifically enters the muscle layer). It comes from Chan Yu (Toad) (commonly known as Lai Xiamu / Toad). The white juice found between the eyebrows is the source. The taste is pungent, and the nature is warm. It is toxic. It can draw out all kinds of wind, fire, and heat toxicity, causing them to exit the body. When pathogenic qi attaches to the muscles and stagnates without resolving, it may manifest as Ding Zhong (hard boil), Fa Bei (back carbuncle), Yin Chuang (genital ulcer), Yin Shi (erosion of genitals), Ju (deep abscess), Li (leprous sore), and malignant sores. Therefore, this pungent-warm medicine must be used. Pungency governs dispersion, and warmth governs movement, allowing pathogens to be entirely released through sweat, preventing them from staying inside and entering deeper, thus clearing heat. However, due to its toxicity, it is only suitable for external treatment to achieve effects. (For example, for an early-stage back carbuncle, tie a live toad to the sore. After half a day, the toad will become comatose; place it in water to save its life, then replace with another. After three days, the toxicity dissipates! For severe cases, cut open the toad and apply it to the stasis; it will soon become foul-smelling. Replace two or three times until healed. Do not underestimate small creatures.) Even if made into pills, the dose should only be 2-3 li to 3-4 li. A larger dose can cause poisoning. If taken as pills, it should be mixed with other medicines such as Niuhuang (Calculus Bovis / Calculus Bos Taurus), Mingfan (Alumen / Alum), Ruxiang (Boswelliae Fructus / Frankincense), Moyao (Myrrhae Resina / Myrrh), etc., and not taken alone. Medical texts record that to extract various toxins, use only one qian of Chan Su, two qian of Baomian (White Flour), and a little Zhusha (Cinnabar), make into a tablet. Administer according to the severity of the illness; do not consume the entire amount. It also treats unnamed toxic swellings on the back. Take 3-5 fen of Chan Su, dissolve in Guang Jiao (Donkey-hide gelatin), add rice vinegar, melt in a pot over fire, brush onto the area while hot continuously until dry. It lubricates jade carving like wax. It is even better for sexual techniques. In summary, these are life-saving achievements in surgery. (One sentence summarizes it all.) Improper use can rot human muscles. As for Chan Yu (Toad), its odor is pungent and cold. It is used for Zheng Jia Ji Kuai (masses and accumulations), dog bites, pediatric Gan Ji (malnutrition/accumulation), epidemic macules, chuang ju fa bei (sores, abscesses, back carbuncles). Its use is similar to Chan Su. Because pungency has dispersing ability and coldness has heat-draining function. External application shows miraculous results; internally, after removing the head, feet, belly, and intestinal filth, it can remove accumulations and clear heat. For dog bites, crush the hind legs of the toad, drink the juice raw. First, pull out 3-4 strands of bloody hair from the vertex of the patient's head; see foam in urine, and the toxicity is resolved. For initial swelling of back carbuncles, tie several live toads to the swollen area, changing them frequently. (Method detailed above) Then the toxicity will dissipate! (Li Shizhen said: The toad is the essence of earth, corresponding to the moon's soul with spiritual nature. It burrows in soil, eats insects, hides among mountain spirits, and controls centipedes. Thus, it can enter the Yangming meridian to defuse deficiency heat, move dampness, and serve as a key herb for Gan disease, abscesses, and various sores.) In total, it possesses the power of drawing out externally and attacking internally. Do not use lightly. Wrap Chan Su in oil paper where the toad's brow splits; the venom oozes onto the paper, dry in the shade for use. Dry Chan Yu by roasting, remove skin and claws, soak in wine, and use the meat.