夹痈者，又名腋痈，生肩膊下窝内。若其皮色不变，漫肿无头，日久方痛，乃生寒热者
，此由肝经血滞，脾经气凝所发。此患难消，终必作脓。未破者，用柴胡清肝汤；已破，则
益气养营汤主之。首尾温补，切忌寒凉。三、四日即头痛寒热者，此足少阳胆、手厥阴心包
络、手少阴心三经，外感风热而发，首宜疏风散邪，兼和营通络，则邪热退而肿消矣。
其有赤色坚肿者，名曰米疽。初起之时，其形如核，即寒热时作，亦由肝脾二经忧思恚
怒，气凝血滞，并风温外袭而发。其治法即与前二证相参可也。
臂疽、鱼肚发者，俱生臂上。在臂外为臂痈，在臂内垂肉处为鱼肚发。总缘经络热极，
风邪外干，气血有乖而生也。当分经络，用本经之药为引，行其气血，则未成可消，已成亦
易溃而易愈矣。其分经治法，则东垣之论綦详焉。其曰臂痛有六道，以两手伸直垂下，大指
居前，小指居后而定之。前廉痛者属阳明，以升麻、干葛、白芷行之；后廉痛者属太阳，以
本、羌活行之；外廉痛者属少阳，以柴胡行之；内廉痛者属厥阴，以柴胡、青皮行之；内
前廉痛者属太阴，以升麻、白芷行之；内后廉痛者属少阴，以细辛、独活行之。夫臂肘之上
，接骨之下，内连大小筋脉，此处发痈疖，每举动不便，垂手多坠疼；如脓深彻骨，即伤筋
脉，拳缩不舒，搐搦，又宜加缓慢筋脉之药，此治法之大较也。至其散邪清热、化毒和营，
则与诸痈疽同治。如秋令伏邪阻络，舌白呕恶、寒热胸闷者，即用泻心或温胆法。如风温夹
湿火入络者，即用羌、防、灵仙、片黄之类。
夹痈，又名腋痈，生于肩膊下方的凹陷处。如果患处皮色不变，漫肿无头，日久才出现疼痛，并伴有寒热症状，这是由肝经血行滞涩、脾经气机凝滞所引发。这种病症难以消散，最终必然化脓。未破溃时，使用柴胡清肝汤；已破溃后，则以益气养营汤为主治方剂。治疗全程宜用温补之法，切忌使用寒凉药物。若在发病三、四日内即出现头痛、寒热，这是足少阳胆经、手厥阴心包络、手少阴心经感受外感风热所致，初期应当疏风散邪，兼以调和营卫、疏通经络，这样邪热退去而肿胀消退。
其中有一种患处呈赤色且坚硬肿胀的，称为米疽。初起时，其形状如豆核，同时伴有寒热交替发作，这也是由于肝脾二经受忧思恼怒影响，导致气凝血滞，加之风温之邪外袭而引发。其治疗方法可与前两种证候参照参酌而定。
臂疽、鱼肚发，均生于手臂上。在手臂外侧的为臂痈，在手臂内侧下垂肌肉处的为鱼肚发。总归是因为经络热极，风邪外侵，气血失调而生。应当辨别所属经络，选用本经的药物作为引经药，运行气血，则未成脓者可消散，已成脓者易溃破且易愈合。关于分经治疗的方法，李东垣的论述非常详尽。他说臂痛有六道，将两手伸直下垂，大拇指在前，小指在后来确定位置。前缘疼痛的属阳明经，用升麻、干葛、白芷引导药力；后缘疼痛的属太阳经，用藁本、羌活引导药力；外缘疼痛的属少阳经，用柴胡引导药力；内缘疼痛的属厥阴经，用柴胡、青皮引导药力；内前缘疼痛的属太阴经，用升麻、白芷引导药力；内后缘疼痛的属少阴经，用细辛、独活引导药力。在臂肘之上、接骨之下的部位，内部连接大小筋脉，此处发生痈疖，往往举动不便，垂手时多有坠痛感；如果脓毒深彻入骨，就会损伤筋脉，导致手指拳缩不能舒展、抽搐痉挛，此时又应加入舒缓筋脉的药物，这是治疗的大致原则。至于散邪清热、化毒和营的方法，则与各种痈疽的治疗相同。如果是秋季伏邪阻滞经络，出现舌苔白、呕吐恶心、寒热胸闷等症状，就使用泻心法或温胆法。如果是风温夹杂湿火侵入经络，就使用羌活、防风、威灵仙、片黄芩之类的药物。
Jia Yong (Clamp Abscess), also known as Ye Yong (Axillary Abscess), arises in the depression below the shoulder blade. If the skin color remains unchanged, with diffuse swelling lacking a head, and pain appearing only after some time, accompanied by chills and fever, this is caused by blood stasis in the Liver Channel and Qi stagnation in the Spleen Channel. This condition is difficult to resolve and will inevitably suppurate. Before rupture, Chaihu Qinggan Tang (Bupleurum Decoction for Clearing the Liver) is used; after rupture, Yiqi Yangying Tang (Qi-Nourishing and Nutrient-Supporting Decoction) is the primary formula. The treatment throughout should focus on warming and tonifying, strictly avoiding cold-cooling agents. If headache, chills, and fever occur within three or four days of onset, this is due to external contraction of Wind-Heat affecting the Foot Shaoyang Gallbladder Channel, Hand Jueyin Pericardium Channel, and Hand Shaoyin Heart Channel. Initially, one should disperse Wind and scatter pathogenic factors, while harmonizing Ying (Nutrient) and unblocking collaterals, so that pathogenic heat recedes and swelling subsides.
Among these, if the lesion presents with redness and hard swelling, it is named Mi Ju (Rice Carbuncle). At its onset, the shape resembles a bean kernel, accompanied by intermittent chills and fever. This is also caused by忧思恚怒 (worry, thought, anger, and resentment) affecting the Liver and Spleen channels, leading to Qi condensation and blood stasis, combined with external invasion of Wind-Warmth. Its treatment method can be referenced from the principles applied to the previous two conditions.
Bi Ju (Arm Carbuncle) and Yudufafa (Fish-Belly Swelling) both arise on the arm. Those on the lateral aspect of the arm are called Bi Yong (Arm Abscess), while those on the medial aspect where the flesh hangs down are called Yudufafa. Generally, this arises from extreme heat in the meridians, external interference by Wind Pathogen, and abnormal circulation of Qi and Blood. Treatment should differentiate by meridian, using herbs belonging to that specific meridian as guiding agents to promote Qi and Blood circulation; thus, unformed abscesses can dissipate, and formed ones can easily suppurate and heal. Regarding meridian-specific treatments, Li Dongyuan's discussion is very detailed. He stated that there are six pathways of arm pain. With both hands extended and hanging down, thumb forward and little finger backward, one can determine the location: Pain at the anterior margin belongs to the Yangming Channel, guided by Shengma (Cimicifugae Rhizoma), Gange (Puerariae Radix), and Baizhi (Angelicae Dahuricae Radix); pain at the posterior margin belongs to the Taiyang Channel, guided by Bencao (Ligustici Rhizoma et Radix) and Qianghuo (Notopterygii Rhizoma et Radix); pain at the lateral margin belongs to the Shaoyang Channel, guided by Chaihu (Bupleuri Radix); pain at the medial margin belongs to the Jueyin Channel, guided by Chaihu (Bupleuri Radix) and Qingpi (Citri Reticulatae Pericarpium Viride); pain at the anterior-medial margin belongs to the Taiyin Channel, guided by Shengma (Cimicifugae Rhizoma) and Baizhi (Angelicae Dahuricae Radix); pain at the posterior-medial margin belongs to the Shaoyin Channel, guided by Xixin (Asari Radix et Rhizoma) and Duhuo (Angelicae Pubescentis Radix). In the area above the elbow and below the junctional bones, internally connected to large and small tendons and vessels, abscesses and boils here often cause inconvenience in movement and a feeling of heaviness and pain when the hand hangs down. If pus penetrates deeply to the bone, it damages tendons and vessels, causing fist clenching, retraction, and spasms; in such cases, herbs that slowly relax tendons and vessels should be added. This constitutes the general principle of treatment. As for dispersing pathogens, clearing heat, resolving toxicity, and harmonizing Ying (Nutrient), the treatment is the same as for various other carbuncles and ulcers. If latent pathogens from autumn obstruct the collaterals, presenting with white tongue coating, nausea, vomiting, chills, fever, and chest tightness, Xie Xin Tang (Drain the Epigastrium Decoction) or Wendan Tang (Warm the Gallbladder Decoction) methods are used. If Wind-Warmth combines with Dampness and Fire entering the collaterals, herbs such as Qianghuo (Notopterygii Rhizoma et Radix), Fangfeng (Saposhnikoviae Radix), Lingxian (Syneilesidis Rhizoma), and Pian Huang (Curcumae Longae Rhizoma) are employed.