窦汉卿曰∶血疳乃脏中虚弱，邪气相侵，真气衰少，风毒闭塞腠理，发于肌肤。
初如紫疥，破时出血，疮生遍身，行处成疮，损伤皮肉，痒痛难禁。治法先宜养血
清热，次宜清肌渗湿。（《全书》）
经曰∶手太阳之别，名曰支正。上脘五寸，虚则生疣，（疣与 同，疣音休，俗乎鸡眼子
是也。）小者指痂疥，取之所别也。
薛立斋曰∶疣属肝胆少阳经风热血燥，或怒火肝火，或肝客淫气所致。盖肝热水
涸，肾气不荣，故精亡而筋挛也，宜以地黄丸滋肾水以生肝血为善。若用蛛丝缠、螳
螂蚀、着艾灸，必多致误。大抵此证与血燥结核相同，故外用腐蚀等法，内服燥血
消毒，则精血愈虚，肝筋受伤，疮口翻突开张，卒成败证矣。
《正字通》云∶疣小者，俗谓之瘊子。
验方
地肤子 白矾（各等分）
煎汤洗数次，瘊子尽消。
又方 天雨鸣雷时，有疣者不与人知，自己立于檐下，迎着雷以手抹去瘊子，
口中默念∶雷打猴子快走，念七遍，抹七遍，向天井外抹即自落。
申斗垣曰∶千日疮一名疣疮，又名瘊
子，又名晦气疮。此疮如鱼鳞，生于人手足上，生一千日自落，故名之。用鸡肫皮
擦之自愈。一法用蕲艾在初生第一个上灸之，余皆自落而痊也。（《启玄》）
验方（谷裕丰）。用铜钱一个套在千日疮上按定，取草纸卷了点着烧透，熄下的
纸煤子放疮上，以香点着，烧过吹去，又放纸煤烧之，不过五七次，其疮根随手自落，并不痛楚。
又方（杜秘）治身上忽生竖头肉，肉猴子并斑痣。
新锻石 碱（各等分）
烧酒泡一时即可用，每周扫上即起紫泡，挑破出水结疤，如点 痣，须以针微挑破，点之。
又方（王德山）。用蛇蜕擦之，即落。
窦汉卿说：血疳是由于内脏虚弱，邪气侵袭，真气衰少，风毒闭塞腠理（皮肤纹理及汗孔），发于肌肤。
初起像紫疥（一种紫色疥疮），破溃时出血，疮疡遍布全身，行走之处皆成疮疡，损伤皮肉，瘙痒疼痛难以忍受。治疗方法应先宜养血清热，其次宜清肌渗湿。（《全书》）
经文说：手太阳小肠经的络穴，名叫支正。在腕后五寸处，虚证会生疣（疣与瘊子同义，疣音休，俗称为鸡眼子是错误的说法，此处指瘊子）。小的表现为指间结痂疥癣，取用手太阳经的络穴治疗即可。
薛立斋说：疣属于肝胆少阳经的风热血燥，或因怒火、肝火，或肝受淫气所致。大概是因为肝热导致水液枯竭，肾气不能滋养，所以精亏而筋脉拘挛，适宜用六味地黄丸滋补肾水以滋生肝血为好。如果使用蛛丝缠绕、螳螂咬蚀、艾灸等方法，必定多导致误治。大抵此证与血燥结核相同，因此外用腐蚀等方法，内服燥血消毒药物，则会使精血更加虚弱，肝筋受伤，疮口翻突开张，最终败坏成为死证。
《正字通》说：小的疣，俗称瘊子。
验方
地肤子 白矾（各等分）
煎汤清洗数次，瘊子全部消除。
又一方 天雨打雷时，有疣的人不告诉别人，自己站在屋檐下，迎着雷电用手抹去瘊子，口中默念：雷打猴子快走，念七遍，抹七遍，向天井外抹即自行脱落。
申斗垣说：千日疮一名疣疮，又名瘊子，又名晦气疮。此疮像鱼鳞，生于人的手足上，生长一千日后自行脱落，所以叫这个名字。用鸡肫皮擦拭即可自愈。另一种方法是用蕲艾在初生第一个疣上施灸，其余的都会自行脱落而痊愈。（《启玄》）
验方（谷裕丰）。用一个铜钱套在千日疮上按定，取草纸卷点燃烧透，将熄下的纸煤子放在疮上，用香点燃，烧过后吹去，再放纸煤烧之，不过五到七次，其疮根随手自行脱落，并不疼痛。
又一方（杜秘）治疗身上忽然生长的竖头肉、肉猴子以及斑痣。
新锻石 碱（各等分）
用烧酒浸泡一个时辰即可使用，每周涂抹一次即起紫泡，挑破出水结疤，如果是点痣，须用针微微挑破，然后点药。
又一方（王德山）。用蛇蜕擦拭，即脱落。
Dou Hanqing stated: Xuegan (Blood Chancre) is caused by internal organ deficiency, invasion of pathogenic factors, decline of true qi, and blockage of couli (skin pores and interstices) by wind-toxin, manifesting on the skin and muscles.
Initially resembling Zijie (Purple Scabies), it bleeds upon rupture, with sores spreading all over the body, forming lesions wherever they move, damaging skin and flesh, causing unbearable itching and pain. The treatment method should first focus on nourishing blood and clearing heat, followed by clearing the muscle layer and leaching out dampness. (Quanshu)
The Classic states: The Luo-connecting vessel of the Hand-Taiyang [Small Intestine] meridian is named Zhizheng (SI8). It is located five cun above the wrist tip. In deficiency conditions, warts may appear. (Warts are synonymous with houzi; 'wu' sounds like 'xiu'; colloquially mistaken for corns/clavus). Small ones present as scabs or scabies on fingers. Treatment involves selecting the Luo-connecting point of this meridian.
Xue Lizhai stated: Warts belong to the Wind-Fire and Blood-Dryness of the Liver-Gallbladder Shaoyang meridians, or are caused by anger-fire, liver-fire, or pathogenic influences affecting the liver. Generally, liver heat dries up fluids, and kidney qi fails to nourish, resulting in essence loss and tendon contraction. It is advisable to use Dihuang Wan (Rehmannia Pill) to nourish kidney water to generate liver blood. If methods such as wrapping with spider silk, eroding with mantis bites, or moxibustion are used, errors are likely. Broadly speaking, this condition is similar to Blood-Dryness Tubercles. Therefore, using external corrosive methods and internal blood-drying detoxification herbs will further deplete essence and blood, damage liver tendons, cause the sore edges to evert and open, ultimately leading to a fatal outcome.
Zhengzitong states: Small warts are commonly known as houzi (verruca vulgaris).
Empirical Formula
Kochia Scoparia Herb (Difuzi) and Alum (Baifan) in equal parts.
Decoct in water and wash several times until the verrucae disappear completely.
Another Prescription: When thunderstorms occur, the person with warts should keep it secret, stand under the eaves facing the thunder, and wipe the verrucae with their hand while silently reciting: "Thunder strike the monkey, go away quickly." Recite seven times, wipe seven times, and wipe towards the outside of the courtyard well, after which they will fall off spontaneously.
Shen Douyuan stated: Qiari Chuang (Thousand-Day Sore) is also known as You Chuang, Houzi, or Huiqi Chuang. This sore resembles fish scales, grows on the hands and feet, and falls off spontaneously after one thousand days, hence the name. Rubbing with chicken gizzard lining promotes self-healing. Another method involves applying moxibustion with Qiai (Qicheng Mugwort) on the first emerging wart, after which the rest will fall off spontaneously and heal. (Qixuan)
Empirical Formula (Gu Yufeng): Place a copper coin over the Qiari Chuang and press firmly. Roll straw paper, ignite it until thoroughly burnt, take the resulting charcoal ember, place it on the sore, ignite it with incense, blow it out after burning, then apply another ember. Repeat this process five to seven times; the root of the sore will detach spontaneously without pain.
Another Prescription (Du Mi) for sudden growth of vertical fleshy tags, meat monkeys, and pigmented nevi on the body.
New Forged Stone (Duan Shi) and Alkali (Jian) in equal parts.
Soak in strong liquor for one shichen (two hours) before use. Apply once a week; purple blisters will form. Puncture them to drain fluid and form scabs. For pigmented nevi, gently prick with a needle before application.
Another Prescription (Wang Deshan): Rub with snake slough; it will fall off.