【方歌】股阴疽发大股中，阴囊之侧坚肿疼，七情不和忧愤致，
溃后缠绵功难成。
【注】此证一名赤施，发生于股内合缝下近阴囊之侧，因偏在
厥阴经，故名大股也。坚硬漫肿木痛，由七情不和，忧
思愤郁，凝结而成。因在阴经，起长、溃脓，俱属迟缓
，溃后尤见缠绵，收敛成功者甚少。初起与附骨疽治法
同，肿溃俱按痈疽肿疡、溃疡门。
【方歌】横玄疽左阴疽右，股内合缝肿硬疼，痛牵睾丸长蛤样，
三阴七情郁滞凝。
【注】此二证俱生股内合缝折纹间，左为横玄疽，右为阴疽，
属三阴经，由七情郁滞凝结而成。漫肿坚硬时疼，甚则
痛牵睾丸，上及少腹，形长如蛤。一两月方能溃破，其
脓深可知，破后脓稠可愈，败浆最难敛口，久必成漏。
初治同附骨疽，溃按痈疽溃疡门。若脓水淋沥，日久有
生虫者，形类蛔虫，亦系脓深郁久之所化也，属逆。
【方歌】伏兔穴处忌生疽，肿硬针灸不相宜，疼痛彻心寒热作，
胃火毒滞溃难医。
【注】经云：伏兔不宜生疮。盖伏兔乃胃经穴道，在膝盖之上
六寸正中，用力大如掌，一堆高肉处，禁用针灸。始发，
寒热交作，疼痛彻心，由胃火毒滞而成。溃后最难收敛
。初治同附骨疽，溃按溃疡门。
【方歌】股阳疽生股外侧，内搏于骨不变色，环跳疽肿腿难伸，
俱由风湿寒凝结。
【注】股阳疽生于股外侧，胯尖之后，其毒内搏骨节，脓深至
骨，故漫肿不变色也。环跳疽生胯骨节间之环跳穴，所
以腰难屈伸，漫肿隐痛也。此二证皆由风、湿、寒凝结
而成。属足少阳胆经。初起宜服黄狗下颏方，更刺委中
穴出黑血，其腿即能转动。若漫肿大痛者，俱宜服内托
黄耆汤；痛而筋挛者，万灵丹汗之；痛止换服神应养真
丹。遍身走注作痛，两脚面胖肿者，亦服万灵丹汗之；
痛止则宜服大防风汤倍加参、术、归、耆等药宣消之。
若时时跳痛将溃，宜托里透脓汤服之；溃后脓清稀者，
宜十全大补汤加牛膝，外以豆豉饼灸之。疮口紫陷者，
十全大补汤加附子服之，外换附子饼灸之。食少者，胃
弱也，诸虚皆禀于脾胃，宜香砂六君子汤减去砂仁加当
归服之。俟胃口强盛，仍服十全大补汤。溃而反痛者，
气血虚也，治宜峻补。始终外治法，俱按痈疽肿疡、溃
疡门。但环跳疽溃破，多成踵疾。
方剂：黄狗下颏方
组成：黄狗下颏（连舌、皮毛劈下，入罐内盐泥固封，铁盏盖
口，〔火段〕一炷香，觉烟清即止。务宜存
性，娶出色黑如炭为度。若带白色，其性已
过，则无用矣。用时研极细末用下颏，宜于
屠家已杀者制用，若生取特杀，恐反招不祥
）
豌豆粉 白蔹末
三味各等分，共和匀，每服五钱，温黄酒空心调服
，外以此药用香油调敷患处。服药之后，出臭汗及熟睡
为准。
【方歌】黄狗下颏连舌皮，入罐泥封火〔火段〕宜，豌豆粉研加
白蔹，酒调臀腿疽尽医。
又方：内托黄耆汤、大防风汤（俱见附骨疽）
万灵丹（见肿疡门）
神应养真丹（见头部游风）
托里透脓汤（见头部侵脑疽）
十全大补汤、香砂六君子汤（俱见溃疡门）
附子饼（见首卷灸法）
【方歌】股阴疽发作于大腿内侧，阴囊旁边出现坚硬肿胀疼痛，多由七情不调、忧愁愤懑所致，溃破后病程缠绵难愈，难以收功。
【注】此证又名赤施，发生于大腿内侧合缝下方靠近阴囊的一侧，因为偏在厥阴经，所以称为大股疽。患处坚硬且漫肿麻木疼痛，是由于七情不调，忧思愤郁，导致气血凝结而成。因为病变位于阴经，所以起病缓慢、脓成迟缓，溃破后尤其表现为缠绵难愈，能够成功收敛愈合的很少。初起时的治疗方法与附骨疽相同，肿胀期参照痈疽肿疡门，溃破后参照溃疡门。
【方歌】横玄疽生于左侧，阴疽生于右侧，大腿内侧合缝折纹处肿胀坚硬疼痛，疼痛牵引至睾丸，形状像蛤蟆一样长条状，这是由于三阴经气机郁滞凝结所致。
【注】这两种证候都发生在大腿内侧合缝折纹之间，左边的是横玄疽，右边的是阴疽，归属于三阴经，由七情郁滞凝结而成。患处漫肿坚硬，时常疼痛，严重时疼痛牵引睾丸，向上波及少腹，形状细长如蛤蟆。需要一到两个月才能溃破，由此可知脓液位置很深，破溃后如果脓液稠厚可以痊愈，如果是败坏的浆液则最难敛口，时间久了必然形成瘘管。初期治疗同附骨疽，溃破后参照痈疽溃疡门。如果脓水淋漓不尽，日久可能生出虫类，形状类似蛔虫，这也是脓液深部郁积久了所化生的，属于逆证。
【方歌】伏兔穴部位忌讳生疽，此处肿胀坚硬不宜针灸，疼痛彻心并伴有寒热发作，因胃火毒邪滞留，溃破后最难医治。
【注】经文说：伏兔穴不宜生疮。因为伏兔穴是胃经的穴位，位于膝盖上方六寸正中，用力按压感觉像手掌大小的一块高肉处，禁止使用针灸。发病初期，寒热交替发作，疼痛剧烈直达心胸，这是由胃火毒邪滞留而成的。溃破后最难收敛愈合。初期治疗同附骨疽，溃破后参照溃疡门。
【方歌】股阳疽生长在大腿外侧，毒邪内迫骨骼而皮肤颜色不变，环跳疽导致腿部肿胀难以伸展，这两者都是由风、湿、寒邪凝结所致。
【注】股阳疽生长在大腿外侧，胯骨尖后方，其毒邪内迫骨节，脓液深达骨骼，所以表现为漫肿而皮肤颜色不变。环跳疽生长在胯骨关节间的环跳穴，因此腰部难以屈伸，表现为漫肿隐痛。这两个证候都是由风、湿、寒邪凝结而成，归属于足少阳胆经。初起宜服用黄狗下颏方，另外针刺委中穴放出黑血，腿部随即就能转动。如果漫肿且剧烈疼痛的，都宜服用内托黄芪汤；疼痛且伴有筋脉拘挛的，用万灵丹发汗解表；疼痛停止后换服神应养真丹。全身游走性疼痛，两脚面浮肿的，也服用万灵丹发汗；疼痛停止后宜服用大防风汤，倍加人参、白术、当归、黄芪等药物以宣通消散。如果时时跳动作痛即将溃破，宜服用托里透脓汤；溃破后脓液清稀的，宜服用十全大补汤加牛膝，外用豆豉饼灸之。疮口呈紫色凹陷的，服用十全大补汤加附子，外用附子饼灸之。食欲减退的，是胃气虚弱，各种虚损都禀受于脾胃，宜服用香砂六君子汤减去砂仁加当归服用。等到胃口强盛后，仍服用十全大补汤。溃破后反而疼痛的，是气血虚弱，治疗应当峻补。始终的外治方法，都参照痈疽肿疡、溃疡门。但是环跳疽溃破后，多会形成下肢痿废的病症（踵疾）。
方剂：黄狗下颏方
组成：黄狗下颏（连着舌头和皮毛劈下来，放入罐内，用盐泥密封固定，铁盏盖住口，烧一炷香的时间，闻到烟变清就停止。务必保存药性，取出色泽黑如炭为度。如果带有白色，说明药性已过，就没有用了。用时研成极细末，只用下颏部分，适宜在屠户已杀死的狗身上取材制作，如果是活取或特意宰杀，恐怕反而招致不祥）
豌豆粉 白蔹末
这三味药各等分，混合均匀，每次服用五钱，用温黄酒空腹调服，外用此药用香油调敷患处。服药之后，以出臭汗及熟睡为标准。
【方歌】黄狗下颏连着舌皮，入罐泥封火烧适宜，加入研碎的豌豆粉和白蔹，酒调服可治愈臀腿疽。
又方：内托黄芪汤、大防风汤（均见附骨疽章节）
万灵丹（见肿疡门）
神应养真丹（见头部游风章节）
托里透脓汤（见头部侵脑疽章节）
十全大补汤、香砂六君子汤（均见溃疡门）
附子饼（见首卷灸法章节）
[Verse] Gu Yin Ju (Abscess of the Inner Thigh) occurs in the middle of the large thigh, presenting with hard swelling and pain on the side of the scrotum. It is caused by disharmony of the Seven Emotions, specifically worry and indignation. After ulceration, the condition lingers and is difficult to heal successfully.
[Note] This syndrome is also known as Chi Shi (Red Discharge). It occurs on the side of the inner thigh near the scrotum, close to the medial seam. Because it is located in the Jueyin Meridian (Liver and Pericardium channels), it is called Da Gu Ju (Large Thigh Abscess). The area is hard, diffusely swollen, and numb/painful. It results from the congealing of Qi and Blood due to emotional disharmony, such as worry, overthinking, and indignation. Since the lesion is in a Yin meridian, its onset and suppuration are slow. After ulceration, it tends to linger, and few cases achieve successful healing. The initial treatment is the same as for Gu Gu Ju (Bone-attached Abscess). For swelling, refer to the "Sores and Ulcers - Swelling Stage" section; for ulceration, refer to the "Ulcer Stage" section.
[Verse] Heng Xuan Ju (Horizontal Mysterious Abscess) appears on the left, and Yin Ju (Yin Abscess) on the right. There is hard swelling and pain in the crease of the inner thigh. Pain radiates to the testicles, and the shape is elongated like a clam. This is caused by stagnation and congealing of the Three Yin meridians and emotional depression.
[Note] Both syndromes occur in the creases of the inner thigh. The one on the left is Heng Xuan Ju, and the one on the right is Yin Ju. They belong to the Three Yin meridians and result from congealing due to emotional stagnation. The area is diffusely swollen and hard with intermittent pain. In severe cases, pain radiates to the testicles and extends upward to the lower abdomen, taking an elongated shape like a clam. It takes one or two months to ulcerate, indicating deep pus. If the pus is thick after rupture, it can heal; if it is foul serum, it is difficult to close the wound and will likely become a fistula over time. Initial treatment is the same as for Gu Gu Ju. For ulceration, refer to the "Sores and Ulcers - Ulcer Stage" section. If pus drains continuously for a long time, worms may appear, resembling roundworms. This is transformed from long-standing deep pus stagnation and is considered a adverse sign (Ni Zheng).
[Verse] It is contraindicated to have Ju (abscesses) at the Futu Acupoint. Swelling and hardness here make acupuncture and moxibustion unsuitable. Pain pierces the heart accompanied by alternating chills and fever. Due to stomach fire and toxic stagnation, it is difficult to treat after ulceration.
[Note] The classics state: Sores should not occur at Futu. Futu is an acupoint of the Stomach Meridian, located six cun above the knee cap in the center, feeling like a palm-sized mound of high flesh when pressed firmly. Acupuncture and moxibustion are strictly prohibited here. Initially, there are alternating chills and fever, and severe pain reaching the heart/chest. This is caused by stomach fire and toxic stagnation. Healing after ulceration is extremely difficult. Initial treatment is the same as for Gu Gu Ju. For ulceration, refer to the "Ulcer Stage" section.
[Verse] Gu Yang Ju (Yang Abscess of the Thigh) arises on the lateral aspect of the thigh. The toxin presses inward against the bone without changing skin color. Huan Tiao Ju (Abscess at Huan Tiao) causes leg swelling and difficulty extending the limb. Both are caused by the congealing of Wind, Dampness, and Cold.
[Note] Gu Yang Ju occurs on the lateral thigh, posterior to the greater trochanter. The toxin presses inward into the bone joints, and the pus is deep, reaching the bone, hence the diffuse swelling without skin discoloration. Huan Tiao Ju occurs at the Huan Tiao Acupoint between the hip joint bones, causing difficulty in bending and extending the waist, presenting as diffuse swelling and dull pain. These two syndromes are caused by the congealing of Wind, Dampness, and Cold, and belong to the Foot Shaoyang Gallbladder Meridian. Initially, Huang Gou Xia Ke Fang (Yellow Dog Mandible Decoction) should be taken. Additionally, puncture Weizhong Acupoint to release dark blood, which will immediately allow leg movement. If there is diffuse swelling and severe pain, Nei Tuo Huang Qi Tang (Internal Supportive Astragalus Decoction) is suitable. If there is pain with tendon spasm, Wan Ling Dan (Myriad Spirits Pill) should be used to induce sweating. Once pain subsides, switch to Shen Ying Yang Zhen Dan (Divine Response Nourishing True Pill). For wandering pain throughout the body and swelling on the dorsum of both feet, take Wan Ling Dan to induce sweating. Once pain stops, take Da Fang Feng Tang (Great Saposhnikovia Decoction) with increased doses of Ren Shen (Ginseng), Bai Zhu (Atractylodes), Dang Gui (Angelica Sinensis), and Huang Qi (Astragalus) to promote circulation and resolution. If there is throbbing pain indicating imminent ulceration, take Tuo Li Tou Nong Tang (Supporting Interior and Penetrating Pus Decoction). If the pus is thin after ulceration, take Shi Quan Da Bu Tang (Comprehensive Great Tonifying Decoction) plus Xu Dui (Achyranthes Bidentatae Radix), and apply Dou Chi Bing Moxibustion externally. If the sore mouth is purple and depressed, take Shi Quan Da Bu Tang plus Fu Zi (Aconite Lateral Root) and apply Fu Zi Bing Moxibustion externally. Poor appetite indicates weak Stomach Qi; all deficiencies derive from the Spleen and Stomach. Take Xiang Sha Liu Jun Zi Tang (Fragrant Amomum Six Gentlemen Decoction) minus Sha Ren (Amomum Fructus) plus Dang Gui. Once appetite strengthens, resume Shi Quan Da Bu Tang. Pain after ulceration indicates Qi and Blood deficiency; treatment requires vigorous tonification. All external treatments follow the "Sores and Ulcers - Swelling Stage" and "Ulcer Stage" sections. However, Huan Tiao Ju often leads to chronic lower limb disability (Zhong Ji) after ulceration.
Formula: Huang Gou Xia Ke Fang (Yellow Dog Mandible Powder)
Composition: Yellow Dog Mandible (including tongue and skin, split off, placed in a jar, sealed with salt mud, covered with an iron lid, roasted for the duration of one incense stick. Stop when smoke clears. Must preserve medicinal properties; target color is black like charcoal. If white remains, the property is exhausted and it is useless. Grind into fine powder for use. Use mandibles from slaughtered dogs; live capture or specific killing is avoided to prevent bad omens.)
Wan Dou Fen (Pisum Sativum Seed Powder)
Bai Lian Mo (Ampelopsis Japonica Rhizome Powder)
Mix equal parts of these three ingredients. Take 5 qian per dose, mixed with warm yellow wine on an empty stomach. Externally, mix this medicine with sesame oil and apply to the affected area. The effect is confirmed by the discharge of foul sweat and falling into a deep sleep after ingestion.
[Verse] Yellow Dog Mandible with tongue and skin, sealed in mud and roasted appropriately. Add Pisum Sativum Seed Powder and Ampelopsis Japonica Rhizome. Mixed with wine, it cures buttock and thigh abscesses.
Alternative Formulas: Nei Tuo Huang Qi Tang (see Gu Gu Ju); Da Fang Feng Tang (see Gu Gu Ju); Wan Ling Dan (see Sores and Ulcers - Swelling Stage); Shen Ying Yang Zhen Dan (see Head部的 You Feng); Tuo Li Tou Nong Tang (see Head部的 Qin Nao Ju); Shi Quan Da Bu Tang, Xiang Sha Liu Jun Zi Tang (see Ulcer Stage); Fu Zi Bing (see Volume 1 Moxibustion Methods).