人有四肢之间，或头面之上，忽然生疽，头黑皮紫，疼痛异常，此阳症之毒也，
治不得法，亦能杀人。盖阳症之毒，其势甚骤，不亟用散毒之药，则养成大横，蔓
延难收，小毒变成大毒。然而疽与痈实有不同∶痈溃于内，疽肿于外也；溃于内难
于外治，肿于外易于内消。虽痈疽之毒尽由内而外发，无不可治内而外愈，而疽病
尤宜内治也。方用消疽散∶
生地（三钱） 连翘（三钱） 忍冬藤（一两） 白芷（三钱） 夏枯草（一两） 地榆（三钱）
天花粉（三钱） 生甘草（二钱） 当归（一两） 水煎服。未溃二剂则消，已溃四剂全愈。
此方通治恶疽之方。凡生疽者，以此方投之，无不神效。盖补血散毒，则血活
而毒难留，凉血清火，则血寒而火易散。疽多阳症，所以治无不宜也。
人有生疔疮者，一时疼痛非常，亦阳毒也，但初生时，人最难辩。世人以生黄
豆令病患嚼，不知辛生之味，便是疔疮，以此辨之不错。其疮头必发黄泡，中或现
紫黑之色，更须细看泡中，必有红白一线通出于泡外。大约疔生足上，红线由足而
入脐；疔生手上，红线由手而入心；疔生唇面，红线由唇面而至喉。如见此红线之
丝，在其红线尽处，用针刺出毒血，则免毒攻心。若现白线之丝，则不必刺也。治法
总以消毒泻火为主。世人戒用官料之药，此不知医之语，毒非药安除哉。方用拔疔散∶
紫花地丁（一两） 甘菊花（一两） 水煎服。一剂而红线除，二剂而疔疮散，三剂全
愈，又何必外治挑开疔头之多事哉。若已溃烂，亦用此方，但加当归治之，必
须二两，亦不必四剂，毒尽而肉生也。
有人在四肢之间，或者头面之上，突然长出疽，疮头顶端发黑、皮肤呈紫色，疼痛异常剧烈，这是阳证类型的毒邪。如果治疗不得法，也能导致死亡。因为阳证的毒邪，发病势头非常迅猛，如果不紧急使用散解毒邪的药物，就会养成严重的横痃（淋巴结肿大），蔓延扩散难以收拾，小毒演变成大毒。然而，疽与痈确实有所不同：痈是在内部溃烂，疽是在外部肿胀；在内部溃烂的比外部的难治，在外部肿胀的容易通过内服药物消除。虽然痈和疽的毒邪都是由体内向体表发散，没有不能通过内治而痊愈的，但是疽病尤其适宜采用内治法。方剂用消疽散：
生地黄（三钱） 连翘（三钱） 忍冬藤（一两） 白芷（三钱） 夏枯草（一两） 地榆（三钱）
天花粉（三钱） 生甘草（二钱） 当归（一两） 用水煎服。未溃破服用两剂即可消散，已溃破服用四剂可完全痊愈。
这是通治恶疽的方子。凡是长疽的人，用这个方子投药，没有不神效的。因为补血散毒，血液流通则毒邪难以停留，凉血清火，血液寒凉则火邪容易消散。疽多属于阳证，所以治疗没有不适宜的。
有人长了疔疮，一时之间疼痛非常剧烈，也是阳毒，但在初生时，人们最难辨别。世人让患者嚼生黄豆，如果尝不出辛辣的味道，就是疔疮，用这个方法辨别不会出错。这种疮的顶端一定发黄起泡，中间有时呈现紫黑色，更需要仔细看泡中，必定有一条红白色的线从泡内通到泡外。大致来说，疔生在脚上，红线从脚传入肚脐；疔生在手上，红线从手传入心脏；疔生在嘴唇面部，红线从唇面传至喉咙。如果看到这样的红线丝状物，在红线尽头处，用针刺出毒血，就能避免毒邪攻心。如果出现的是白线丝状物，就不必刺了。治疗方法总以消毒泻火为主。世人告诫不要用官方配制的成药，这是不懂医的话，毒邪不用药怎么清除呢？方剂用拔疔散：
紫花地丁（一两） 甘菊花（一两） 用水煎服。一剂后红线消失，二剂后疔疮消散，三剂后完全痊愈，又何必做那些挑开疔头的多余事情呢？如果已经溃烂，也用这个方子，但加上当归来治疗，必须用到二两，也不必吃四剂，毒邪排尽后肌肉自然生长。
There are cases where individuals suddenly develop a *ju* (a type of deep-seated, hard swelling) between the limbs or on the head and face. The top of the lesion is black, the skin is purple, and the pain is extreme. This is the toxicity of a Yang syndrome. If treated improperly, it can also be fatal. The toxicity of a Yang syndrome has a very rapid onset; if dispersing-toxicity herbs are not used urgently, it may lead to severe buboes (lymphadenitis), spreading uncontrollably, transforming minor toxicity into major toxicity. However, *ju* and *yong* (a type of superficial, soft swelling) are indeed different: *yong* ulcerates internally, while *ju* swells externally. Ulceration internally is harder to treat than external swelling, which is easier to resolve through internal medication. Although the toxicity of both *yong* and *ju* emanates from the interior to the exterior, none cannot be cured through internal treatment; however, *ju* diseases are particularly suitable for internal therapy. The prescription used is Xiao Ju San (Disperse Ju Powder):
Sheng Di Huang (Rehmanniae Radix Preparata, 3 qian) Lian Qiao (Forsythiae Fructum, 3 qian) Ren Dong Teng (Lonicerae Japonicae Caulis, 1 liang) Bai Zhi (Angelicae Dahuricae Radix, 3 qian) Xia Ku Cao (Prunellae Spica, 1 liang) Di Yu (Sanguisorbae Radix, 3 qian)
Tian Hua Fen (Trichosanthis Radix, 3 qian) Sheng Gan Cao (Glycyrrhizae Radix et Rhizoma, 2 qian) Dang Gui (Angelicae Sinensis Radix, 1 liang) Decoct in water and take orally. Two doses will cause resolution if un-ulcerated; four doses will ensure complete recovery if ulcerated.
This is a universal formula for treating malignant *ju*. For anyone developing a *ju*, administering this formula yields miraculous effects. Because nourishing blood and dispersing toxicity promotes blood circulation, making it difficult for toxicity to remain; cooling the blood and clearing fire lowers blood temperature, making it easy for fire to dissipate. Since *ju* mostly belongs to Yang syndromes, treatment is invariably appropriate.
Some individuals develop *ding* chancres (hard boils), experiencing sudden, excruciating pain. This is also Yang toxicity, but it is most difficult to identify at its initial stage. A common folk method involves having the patient chew raw soybeans; if they cannot taste the pungent/spicy flavor, it indicates a *ding* chancre, a reliable diagnostic sign. The head of such a chancre must present as a yellow blister, sometimes showing a purplish-black color in the center. One must examine closely within the blister, where there will inevitably be a red-white line extending outwards from the blister. Generally, if the *ding* appears on the foot, the red line travels from the foot towards the umbilicus; if on the hand, the red line travels from the hand towards the heart; if on the lips or face, the red line travels from the lips/face towards the throat. Upon seeing such a thread-like red line, prick the end of the red line with a needle to drain toxic blood, thereby preventing the toxicity from attacking the heart. If a white thread-like line appears, pricking is unnecessary. The treatment principle focuses primarily on detoxification and purging fire. People warn against using official pharmaceutical preparations, which is ignorant advice; how can toxicity be removed without medicine? The prescription used is Ba Ding San (Extract Ding Powder):
Zi Hua Di Ding (Violae Herba, 1 liang) Gan Ju Hua (Chrysanthemi Flos, 1 liang) Decoct in water and take orally. After one dose, the red line disappears; after two doses, the *ding* chancre dissipates; after three doses, complete recovery occurs. Why bother with the superfluous act of lancing the chancre head externally? If it has already ulcerated, use this same formula, but add Dang Gui (Angelicae Sinensis Radix) in a dosage of 2 liang. Four doses are not required; once the toxicity is exhausted, flesh will regenerate naturally.