主治。消热。杀虫。软坚。疗大热毒风。 风。劳风。蚶牙痛牙。出血。咽喉肿痛。心
腹烦闷。瘰 结核。骨槽风。 齿。解火毒面毒金石毒。牛马急黄黑汗。（研二三两灌之） 胡
桐泪散。胡桐泪细辛川芎白芷各一钱五分。寒水石二钱。生地一钱。青盐二分。研末。干擦
患处。少选漱去。再擦。治牙龈腐臭。时流白脓。
主治。滋阴。降火。清热。杀虫。壮骨髓。利下焦。泻膀胱相火。补肾水不足。肌
肤
赤热。气逆脉波黄胆。骨蒸。时行赤目。目昏耳鸣。鼻衄。喉肿。喉痹。心热。心痛。五脏
结热肠风。痔血。血痢下血。阴痿消渴。尿多。小便不通。妇人妊娠下痢。阴蚀。小儿囟肿。
脐疮。诸疮作痛。痈疽。乳发。冻疮。火毒疮。热泡疮。头疮虫疮。口疮。阴茎疮。黄柏丸。
黄柏五钱。赤芍四钱。研末。米饭和丸麻子大。每服一二十丸。食前米饮下。治小儿热痢下
血。 又方。黄柏（微炒锉）当归（微炒锉）各一两。研末。煨大蒜和丸绿豆大。每服七丸。
日
三四次。治小儿久白痢。腹胀 痛。 黄柏散。黄柏一两。五倍子二钱。密陀僧甘草各一钱。
除柏外余均研末。清水调敷柏上。火炙三五次。将柏切片。临卧贴之。天明即愈。治茧唇。 又
方。黄柏（蜜涂炙干）白僵蚕（炒去丝）各等分。研末掺患处治湿疮。 又方。黄柏大黄朴
硝鸡
子壳寒水石各等分。研末水调涂。治汤火伤。 又方。黄柏黄连防风各四钱。胡椒五钱大枫
肉枯矾各二钱。大茴香花椒各三钱。雄黄硫黄各五分。槟榔二枚。斑蝥十个。潮脑一钱五分。
研末腊猪油调涂。麻木者亦可擦。痒而搔破者擦破处。治手足皮枯。破则如水窠。或痒如疥
癞。并治雁来风。 黄柏汤。黄柏黄连白头翁升麻当归牡蛎石榴皮黄芩寄生炙草各二分。犀
角艾叶各一分。 咀。水煎服。治小儿下赤白痢如鱼脑。头痛身热。或心烦壮热及温病热盛。
下血如鱼脑者。
【胡桐泪】
主治功效：清除热邪，杀灭寄生虫，软化坚硬肿块。治疗大热毒风、风劳病、蚶牙痛（牙齿疼痛）、牙龈出血、咽喉肿痛、心胸腹部烦闷、瘰疬结核、骨槽风、龋齿。解除火毒、面毒以及金石之毒。对于牛马急黄黑汗症（研成粉末，取二三两灌服）。
胡桐泪散方：胡桐泪、细辛、川芎、白芷各一钱五分，寒水石二钱，生地黄一钱，青盐二分。以上药材研成细末，直接干擦患处，片刻后漱口去除药渣，再次擦拭。用于治疗牙龈腐烂发臭，时常流出白色脓液。
【黄柏】
主治功效：滋养阴液，降泄相火，清除热邪，杀灭寄生虫，强壮骨髓，通利下焦，泻除膀胱相火，补肾水不足。治疗肌肤赤热、气逆、脉象洪大、黄疸、骨蒸潮热、时行性赤眼、视物昏花、耳鸣、鼻衄、喉肿、喉痹、心热、心痛、五脏郁结之热、肠风、痔血、血痢、便血、阳痿、消渴、尿多、小便不通。妇人妊娠期间患痢疾、阴部蚀烂、小儿囟门肿胀、脐疮、各种疮疡疼痛、痈疽、乳发、冻疮、火毒疮、热泡疮、头疮、虫疮、口疮、阴茎疮。
黄柏丸方：黄柏五钱，赤芍四钱。研成细末，用米饭调和制成如麻子大小的丸剂。每次服用一二十丸，饭前用米汤送服。用于治疗小儿热痢便血。
又一方：黄柏（微炒后锉碎）、当归（微炒后锉碎）各一两。研成细末，用煨熟的大蒜调和制成如绿豆大小的丸剂。每次服用七丸，每日三至四次。用于治疗小儿长期患白痢，伴有腹胀疼痛。
黄柏散方：黄柏一两，五倍子二钱，密陀僧、甘草各一钱。除黄柏外，其余药材均研成细末。用清水调匀涂抹在黄柏片上，用火炙烤三至五次。将处理过的黄柏切成薄片，睡前贴敷患处，天明即可痊愈。用于治疗茧唇（唇部生茧状硬块）。
又一方：黄柏（涂蜜炙干）、白僵蚕（炒去丝）各等分。研成细末，掺撒于患处。用于治疗湿疮。
又一方：黄柏、大黄、朴硝、鸡子壳、寒水石各等分。研成细末，用水调匀涂抹。用于治疗烫伤和火烧伤。
又一方：黄柏、黄连、防风各四钱，胡椒五钱，大枫肉、枯矾各二钱，大茴香、花椒各三钱，雄黄、硫黄各五分，槟榔二枚，斑蝥十个，潮脑（冰片）一钱五分。研成细末，用腊猪油调匀涂抹。皮肤麻木者也可擦拭，瘙痒抓破处可擦于破损处。用于治疗手足皮肤干枯，破裂如水窠状，或瘙痒如同疥癞。同时治疗雁来风（一种皮肤病）。
黄柏汤方：黄柏、黄连、白头翁、升麻、当归、牡蛎、石榴皮、黄芩、寄生（桑寄生）、炙甘草各二分，犀角、艾叶各一分。切碎药材，加水煎煮后服用。用于治疗小儿下赤白痢，排泄物如鱼脑状，伴有头痛身热，或心烦壮热及温病热盛，下血如鱼脑状者。
[Hutong Lei (Poplar Tears)]
Indications: Clears heat, eliminates parasites, and softens hardness. Treats severe heat-toxic wind, wind-lao disease, toothache (specifically referring to pain resembling clam-shell shape or severe dental pain), gingival bleeding, sore throat and swelling, vexation and oppression in the chest and abdomen, scrofula and tubercles, osteomyelitis of the jaw (Gucao Feng), and dental caries. Resolves fire toxin, facial toxin, and toxins from metals and stones. For cattle and horses suffering from acute yellowing with black sweat (grind into powder, take 2-3 liang, and administer orally).
Hutong Lei San (Poplar Tears Powder): Hutong Lei, Xixin (Asarum Root), Chuanxiong (Szechwan Lovage Rhizome), Baizhi (Angelica Dahurica Root) each 1.5 qian; Hanshuishi (Calcitum) 2 qian; Shengdi Huang (Rehmannia Root) 1 qian; Qingyan (Halite) 0.2 qian. Grind all ingredients into fine powder. Apply dry powder directly to the affected area, rinse mouth after a short while to remove residue, and reapply. Used for treating foul-smelling rotting gums with intermittent discharge of white pus.
[Huangbai (Phellodendron Bark)]
Indications: Nourishes yin, descends fire, clears heat, eliminates parasites, strengthens bone marrow, benefits the lower jiao, drains ministerial fire of the bladder, and tonifies insufficiency of kidney water. Treats red-hot skin, rebellious qi, surging pulse, jaundice, bone-steaming tidal fever, epidemic red eyes, blurred vision, tinnitus, epistaxis, throat swelling, bi-syndrome of the throat, heart heat, heart pain, heat accumulation in the five zang organs, intestinal wind, hemorrhoidal bleeding, bloody dysentery, hematochezia, impotence, xiao-ke (wasting-thirst syndrome), polyuria, urinary retention. For women during pregnancy suffering from dysentery, genital erosion, fontanelle swelling in infants, umbilical ulcers, various painful sores, carbuncles and furuncles, breast abscesses, frostbite, fire-toxic sores, hot blister sores, scalp sores, insect-infested sores, oral ulcers, penile sores.
Huangbai Wan (Phellodendron Pill): Huangbai 5 qian, Chishao (Red Peony Root) 4 qian. Grind into powder, mix with rice paste to form pills the size of hemp seeds. Take 10-20 pills per dose before meals, washed down with rice water. Used for treating pediatric heat-dysentery with blood in stool.
Another prescription: Huangbai (lightly stir-fried and crushed), Danggui (Angelica Sinensis Root) (lightly stir-fried and crushed) each 1 liang. Grind into powder, mix with roasted garlic to form pills the size of mung beans. Take 7 pills per dose, 3-4 times daily. Used for treating chronic pediatric white dysentery accompanied by abdominal distension and pain.
Huangbai San (Phellodendron Powder): Huangbai 1 liang, Wubeizi (Galla Chinensis) 2 qian, Miduoseng (Litharge), Gancao (Licorice Root) each 1 qian. Except for Huangbai, grind the remaining ingredients into powder. Mix with clear water and apply onto slices of Huangbai. Roast over fire 3-5 times. Cut the treated Huangbai into thin slices and apply to the lesion before sleep; recovery is expected by dawn. Used for treating callous lips (Jianchun).
Another prescription: Huangbai (coated with honey and roasted until dry), Baijiangcan (Bombyx Batryticatus) each equal parts. Grind into powder and sprinkle on the affected area. Used for treating damp sores.
Another prescription: Huangbai, Dahuang (Rhubarb Root), Puxiao (Mirabilite), Jiziqiao (Eggshell), Hanshuishi each equal parts. Grind into powder, mix with water, and apply topically. Used for treating burns and scalds.
Another prescription: Huangbai, Huanglian (Coptis Rhizome), Fangfeng (Saposhnikovia Root) each 4 qian; Hujiao (Black Pepper) 5 qian; Dafengrou (Semecarpus Anacardium Nut), Kufan (Alum) each 2 qian; Da Huixiang (Fennel Fruit), Huajiao (Zanthoxylum Pericarpium) each 3 qian; Xionghuang (Realgar), Liuhuang (Sulfur) each 0.5 qian; Binglang (Areca Seed) 2 pieces; Banmao (Mylabris) 10 pieces; Chaonao (Borneol) 1.5 qian. Grind into powder, mix with lard, and apply topically. Can also be rubbed on numb areas. Rub on broken skin if itching leads to scratching wounds. Used for treating dry and cracked skin on hands and feet, which may break open like water blisters, or itching resembling scabies. Also treats Yanlaifeng (a type of dermatological condition).
Huangbai Tang (Phellodendron Decoction): Huangbai, Huanglian, Baitouweng (Pulsatilla Root), Shengma (Cimicifuga Rhizome), Danggui, Muli (Oyster Shell), Shiliupi (Pomegranate Rind), Huangqin (Scutellaria Root), Jisheng (Taxillus Chinese), Zhigancao (Prepared Licorice Root) each 0.2 fen; Xijiao (Rhinoceros Horn), Aiye (Mugwort Leaf) each 0.1 fen. Coarsely crush the herbs, decoct in water, and drink. Used for treating pediatric dysentery with passage of red and white mucoid stools resembling fish brains, accompanied by headache and fever, or mental restlessness with high fever, and in warm diseases with excessive heat, where bloody stools resemble fish brains.