《病源论》云∶甲疽之状，疮皮浓，甲错剥起是也。其疮亦痒，恒欲搔抓之，汁出。其
初皆是风邪折血所生，而疮里亦有虫也。
《医门方》疗甲疽，其候甲际生 肉，痛不得着靴鞋（户皆反），脓血不止方∶
上取石胆火上烧令烟尽，研末敷疮上，消痛，不过三五度必瘥。极效，宜保爱之。
《随时方》治甲疽方，因割甲伤肌作疮痒，浸淫相染，脓血如火烧，疮日夜渐引，名医
不能疗者，此方必瘥如神。
绿矾状似朴硝，绿色，炭烧沸尽候看色赤，停冷，简取好者捣筛为散，粗石不堪弃之勿
用。上若患前件疮者，先以盐汤净洗，以绿矾散浓敷之。用帛缠裹经一日KT 脓水即干。
若觉疮干急痛，即涂酥取润，每一两日一洗，浓敷之。病初患疮尚小脓小，未多之时，只取
少许散药，和苏如软面敷一两日，即瘥。（《极要方》同之。）
《病源论》云∶肠痈者，寒温不适，喜怒无度所致，使邪气与营卫相干，在肠内，遇热
加之，血气蕴积，结聚成痈。热积不散，血肉腐坏，化而为脓。其病之状，少腹微强，小便
似淋，恶寒，身皮甲错，腹皮急，如肿状。甚者腹胀大，转侧闻水声，或绕脐生疮，而穿脓
出；或脓自脐中出；或大便去脓血。惟宜急治之。又大便脓血，似赤白下，而实非者，是肠
痈。猝得肠痈而不晓，治之错者则杀人。
《千金方》肠痈之为病，小腹重，而抑强之则痛，小便数似淋，时时汗出，复恶寒。其
身皮甲错，腹皮急如肿状。
又云∶绕脐有疮如粟，皮热便脓血，似赤白下，必死，治之方∶
屈两肘，正灸肘头锐骨各百壮，则下脓血即愈。
又方∶大黄（四两） 牡丹皮（三两） 桃仁（五十枚） 冬瓜仁（一升） 芒硝（二
两）
五味，水六升，煮取一升，尽服，当下脓血。
《集验方》治肠痈汤方∶
薏苡仁（一升） 牡丹皮（三两） 桃仁（三两） 冬瓜仁（一升）
凡四物，以水六升，煮取二升，分再服。
《范汪方》治肠痈方∶
大黄（一斤，金色者） 大枣（十六枚）
凡二物，以水一斗，煮取三升，宿勿食。能一服，须臾攻痛如火烧之，痈坏血即随大便
出。
《医门方》疗肠痈方∶
甘瓜子（一升，碎） 牡丹皮 大黄（别浸） 芒硝（各三两） 桃仁（去尖） 甘草
（炙，各二两）
水七升，煮取二升半，下大黄，更煮二三沸，绞去滓，纳芒硝，分温三服，当下脓血。
《诸病源候论》说：甲疽的症状，是疮口皮肤增厚，指甲周围皮肤粗糙如鳞状剥落。这种疮也会发痒，患者总是想抓挠它，导致渗出液流出。起初都是因为风邪损伤血液所致，而且疮里面也有虫存在。
《医门方》治疗甲疽，其症状是指甲边缘长出赘肉，疼痛得不能穿鞋袜（“靴”音户皆反），脓血不止的方子：
以上一味药，取石胆在火上烧至烟尽，研磨成粉末敷在疮上，能消除疼痛，不超过三到五次必定痊愈。效果极佳，应当珍视保存。
《随时方》治疗甲疽的方子，因修剪指甲伤及肌肉形成疮疡，瘙痒且浸淫扩散，脓血像火烧一样痛，疮口日夜逐渐扩大，即使是名医也无法治愈的情况，此方必能神奇般治愈。
绿矾形状类似朴硝，呈绿色，用炭火烧至沸腾干尽后观察颜色变红，冷却后挑选好的捣碎筛成散剂，粗劣的石块不堪使用则丢弃不用。如果患有上述疮疡，先用盐水汤洗净，将绿矾散厚厚地敷在上面。用布帛包扎缠绕经过一天，脓水就会干燥。如果觉得疮口干燥急痛，就涂抹酥油以滋润，每两日清洗一次，再厚厚地敷上。疾病初起时疮还小，脓血不多时，只取少量散药，与酥油调和如软面团状敷上一两天，即可痊愈。（《极要方》与此相同。）
《诸病源候论》说：肠痈，是由于寒温失调、喜怒无常所致，使得邪气与营卫之气相互干扰，停留在肠内，遇到热邪加重，气血蕴结积聚，凝聚形成痈肿。热邪积聚不散，血肉腐败坏死，化为脓液。这种病的症状，是小腹微微僵硬，小便像淋病一样频急，恶寒，身体皮肤粗糙如鳞状剥落，腹部皮肤紧绷，像肿胀的样子。严重的会出现腹胀大，翻身转动时听到水声，或者围绕肚脐生疮，破溃流脓；或者脓液从肚脐中流出；或者大便排出脓血。只宜紧急治疗。另外，大便排出的脓血，看起来像赤白痢疾，但实际上不是，这就是肠痈。突然患上肠痈而不了解，治疗错误则会致死。
《千金方》说：肠痈这个病，小腹沉重，按压或强行挺腹则疼痛，小便频数像淋病，时常出汗，又伴有恶寒。身体皮肤粗糙如鳞状剥落，腹部皮肤紧绷像肿胀的样子。
又说：围绕肚脐有粟米大小的疮，皮肤发热便排出脓血，看起来像赤白痢疾，这是必死的病症，治疗的方子：
弯曲双肘，正对肘头锐骨各灸一百壮，那么下出脓血就会痊愈。
另一个方子：大黄（四两） 牡丹皮（三两） 桃仁（五十枚） 冬瓜仁（一升） 芒硝（二两）
以上五味药，用水六升，煮取一升，全部服下，应当排出脓血。
《集验方》治疗肠痈的汤方：
薏苡仁（一升） 牡丹皮（三两） 桃仁（三两） 冬瓜仁（一升）
共四味药，用水六升，煮取二升，分两次服用。
《范汪方》治疗肠痈的方子：
大黄（一斤，选用金色者） 大枣（十六枚）
共两味药，用水一斗，煮取三升，隔夜不要进食。如果能服下一剂，片刻间会感到疼痛如火烧，痈坏的血随即随大便排出。
《医门方》治疗肠痈的方子：
甘瓜子（一升，捣碎） 牡丹皮 大黄（另浸泡处理） 芒硝（各三两） 桃仁（去掉尖端） 甘草（炙制，各二两）
用水七升，煮取二升半，加入大黄，再煮两三沸，绞去药渣，放入芒硝，分三次温服，应当排出脓血。
The *Bing Yuan Lun* (Treatise on the Origins and Manifestations of Diseases) states: The manifestation of *Jia Ju* (Onychocryptosis with Ulceration, literally "nail carbuncle") is characterized by thickened skin around the wound and scaling, rough peeling of the nail bed. The wound also itches, causing the patient to constantly scratch it, resulting in exudate discharge. Initially, this arises from wind pathogen damaging the blood, and there are also parasites within the wound.
The *Yi Men Fang* (Medical Gate Formulas) treats *Jia Ju*, where the symptom is flesh growing at the nail margin, pain preventing the wearing of shoes (pronounced "hu jie fan"), and continuous discharge of pus and blood. Formula:
Take Shidan (Chalcanthite), roast it over fire until smoke ceases, grind into powder, and apply to the wound. It reduces pain; within three to five applications, it will surely heal. Extremely effective; preserve it carefully.
The *Sui Shi Fang* (Formulas for Every Occasion) treats *Jia Ju*: caused by trimming nails injuring the muscle, leading to ulceration, itching, spreading infiltration, and pus/blood discharge feeling like burning fire. The wound expands day and night. Even famous physicians cannot cure it, but this formula will miraculously heal it.
Lvfan (Green Vitriol) resembles Puxiao (Mirabilite), is green in color. Roast it over charcoal until boiling dry, observe when the color turns red, let it cool, select the good quality, crush and sieve into a powder. Discard coarse stones that are unusable. If suffering from the aforementioned wound, first wash cleanly with salt water, then apply Lvfan powder thickly. Wrap with cloth for one day, and the pus/water will dry up. If the wound feels dry and urgently painful, apply Su (Butter/Ghee) to moisten it. Wash once every two days, then apply thickly. When the disease is initial, the wound is small with little pus/blood, take a small amount of powder, mix with butter like soft dough, apply for one or two days, and it will heal. (This is consistent with the *Ji Yao Fang*).
The *Bing Yuan Lun* states: *Chang Yong* (Intestinal Abscess) is caused by improper regulation of cold and warmth, and excessive anger or joy. This allows pathogenic qi to interfere with Ying and Wei (Nutritive and Defensive Qi). Located in the intestines, aggravated by heat, Qi and Blood accumulate and condense to form an abscess. Heat accumulates and does not dissipate, causing flesh and blood to rot and transform into pus. The symptoms of this disease include slight stiffness in the lower abdomen, urination resembling strangury (dysuria), aversion to cold, rough scaling of the body skin, tightness of the abdominal skin as if swollen. Severe cases present with abdominal distension and enlargement, hearing water sounds when turning over, or sores forming around the umbilicus that rupture and discharge pus; or pus discharging from the umbilicus itself; or stool containing pus and blood. Urgent treatment is required. Additionally, stool containing pus and blood may resemble Chi Bai Xia Li (Dysentery with red and white discharge), but is actually not dysentery; this is *Chang Yong*. Sudden onset of *Chang Yong* without recognition, and incorrect treatment, can be fatal.
The *Qian Jin Fang* (Essential Prescriptions Worth a Thousand Gold) states: In the disease of *Chang Yong*, the lower abdomen feels heavy, and pressing or forcing extension causes pain. Urination is frequent and resembles strangury. There is occasional sweating accompanied by aversion to cold. The body skin is rough and scaly, and the abdominal skin is tight as if swollen.
It further states: Sores like millet grains around the umbilicus, with hot skin followed by discharge of pus and blood, resembling dysentery, indicates a fatal condition. Treatment formula:
Flex both elbows, moxa directly on the sharp bone at each elbow tip for one hundred moxa cones. Then, discharging pus and blood will lead to recovery.
Another formula: Dahuang (Rhubarb Root and Rhizome, 4 liang), Mudanpi (Moutan Cortex, 3 liang), Taoren (Peach Seed, 50 pieces), Donggua Ren (Winter Melon Seed, 1 sheng), Mangxiao (Natrii Sulfas, 2 liang).
These five ingredients, decocted in six sheng of water, yield one sheng. Take all at once. Pus and blood should be discharged.
The *Ji Yan Fang* (Collected Proven Formulas) treats *Chang Yong* with a Decoction:
Yiyiren (Coix Seed, 1 sheng), Mudanpi (Moutan Cortex, 3 liang), Taoren (Peach Seed, 3 liang), Donggua Ren (Winter Melon Seed, 1 sheng).
These four items, decocted in six sheng of water, yield two sheng. Divide into two doses.
The *Fan Wang Fang* (Fan Wang's Formulas) treats *Chang Yong*:
Dahuang (Rhubarb Root and Rhizome, 1 jin, preferably golden-colored), Dazao (Jujube Fruit, 16 pieces).
These two items, decocted in ten dou of water, yield three sheng. Do not eat overnight before taking. After one dose, within a short time, severe burning pain will occur, and the necrotic blood of the abscess will be expelled via the stool.
The *Yi Men Fang* (Medical Gate Formulas) treats *Chang Yong*:
Ganguazi (Benincasa Seed, 1 sheng, crushed), Mudanpi (Moutan Cortex), Dahuang (Rhubarb Root and Rhizome, separately soaked), Mangxiao (Natrii Sulfas, 3 liang each), Taoren (Peach Seed, remove tips), Gancao (Licorice Root, roasted, 2 liang each).
Decoct in seven sheng of water to yield two and a half sheng. Add Dahuang, boil for two or three more boils. Strain to remove dregs, add Mangxiao. Divide into three warm doses. Pus and blood should be discharged.