脑后发生在督经，热结风府粟肿疼，红活易溃稠脓顺，紫暗难溃血水凶。
【注】此证属督脉经，枕骨之下风府穴，由积热外受风邪凝结而成。初如粟米， 肿
作疼痛，引头顶肩项，气粗鼻塞，渐大如盘如碗。红活速溃出稠脓者顺；紫暗难溃时津
血水者逆。初起内外治法，按玉枕疽。其余内外治法，俱按痈疽肿溃疡门。
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脑铄项后如横木，精涸毒火上乘生，黑如灶烟牛唇硬，木痛未腐水流清。急施桑艾
法至痛，火燎刺痛属阳经，速服仙方活命饮，若见七恶定然凶。
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【注】此证生于督脉经风府穴，由阴精枯涸，毒火乘之而生。初起形如椒粒，坚硬紫
暗，渐肿如横木，甚则上至颠顶，下至大椎，色如灶烟，硬若牛唇。未脓皮先腐烂，时流
清水，肌肉冰冷，轻者木痛，重者毒瓦斯将陷，全不知疼。宜急施桑柴烘法或艾壮灸法，以
痛为度；速服仙方活命饮，以舒解其毒。七日之后，不发长不生大脓者，宜服十全大补
汤救之，投补药不应者难治。若初起热如火燎刺痛，属阳证，速服黄连消毒饮，外敷回
阳玉龙膏。此证若首尾纯见五善之证者，属顺；见七恶之证者，属逆也。其余内外治法，
俱按痈疽肿溃疡门。
桑柴烘法 艾壮灸法（俱见首卷）
仙方活命饮（见肿疡门）
十全大补汤（见溃疡门）
黄连消毒饮（见前百会疽）
回阳玉龙膏（见肿疡门）
脑后发生于督脉经，因热邪结聚于风府穴，导致局部如粟米般肿胀疼痛。若患处颜色红活，易于溃破且流出稠厚脓液，为顺证；若颜色紫暗，难以溃破且流出血水，为凶证。
【注】此病证属于督脉经，部位在枕骨之下的风府穴，由体内积热与外受风邪凝结而成。初起时像粟米一样，肿胀并引起疼痛，牵引至头顶、肩部和颈部，呼吸气粗、鼻塞，随后逐渐肿大如盘或如碗。若患处红活，迅速溃破并排出稠厚脓液，为顺证；若颜色紫暗，难以溃破且渗出津液和血水，为逆证。初起时的内治和外治方法，参照“玉枕疽”篇。其余内外治法，均参照“痈疽肿溃疡门”。
脑铄生于项后，形状如同横木，因阴精枯竭、毒火上攻而生。若患处颜色黑如灶烟，坚硬如牛唇，麻木疼痛且未化脓但流出清稀液体。应立即施行桑柴烘法或艾壮灸法，以感到疼痛为度；若如火燎般刺痛，属阳经病变，应速服仙方活命饮，若出现七恶之证，必然凶险。
【注】此病证生于督脉经的风府穴，由阴精枯涸，毒火乘虚而入而生。初起时形状如椒粒，坚硬且紫暗，随后肿胀如横木，严重时向上至颠顶，向下至大椎穴，颜色如灶烟，坚硬如牛唇。在未化脓时皮肤先腐烂，时常流出清水，肌肉冰冷，轻者感觉麻木疼痛，重者毒气将内陷，完全不知疼痛。宜急施桑柴烘法或艾壮灸法，以痛感为限度；速服仙方活命饮，以舒缓解除其毒性。七日之后，若不生长新肉或不产生大量脓液，宜服用十全大补汤来救治，若投用补药无效则难治。若初起时热势如火燎且刺痛，属阳证，速服黄连消毒饮，外敷回阳玉龙膏。此病若在病程始终纯见五善之证，属顺证；若见七恶之证，属逆证。其余内外治法，均参照“痈疽肿溃疡门”。
桑柴烘法 艾壮灸法（均见于首卷）
仙方活命饮（见于肿疡门）
十全大补汤（见于溃疡门）
黄连消毒饮（见于前文百会疽）
回阳玉龙膏（见于肿疡门）
Nuchal Carbuncle (Naohou Fa) occurs in the Du Meridian (Governing Vessel). Heat accumulation at Fengfu (GV18) causes swelling and pain resembling millet grains. If the lesion is red and vibrant, easy to ulcerate, and discharges thick pus, it is a favorable prognosis; if purple and dark, difficult to ulcerate, and discharges bloody fluid, it is ominous.
[Note] This condition belongs to the Du Meridian (Governing Vessel), located at the Fengfu (GV18) acupoint below the occipital bone. It is formed by the confluence of accumulated internal heat and externally contracted wind pathogen. Initially, it resembles a millet grain, swelling with pain that radiates to the vertex, shoulders, and neck, accompanied by coarse breathing and nasal congestion. It gradually enlarges to the size of a plate or bowl. If red and vibrant, rapid ulceration with thick pus discharge indicates a favorable course; if purple and dark, difficulty in ulceration with exudation of serum and blood indicates an unfavorable course. For initial treatment, refer to the section on Yuzhen Abscess (Yuzhen Ju). All other internal and external treatments follow the section on Carbuncles, Ulcers, Swellings, and Ulcerations.
Brain Chisel (Naoshuo) appears at the back of the neck like a horizontal log. It arises from the depletion of Essence (Jing) and the ascent of toxic fire. If black as soot and hard as ox lips, with numbness and pain but clear fluid flowing before suppuration, it is critical. Immediately apply the Mulberry Wood Roasting Method or Moxibustion; if burning and stinging pain occurs, it belongs to the Yang meridians. Quickly administer Xianfang Huoming Yin (Immortal Formula for Saving Life). If Seven Evil signs appear, the prognosis is definitely poor.
[Note] This condition arises at the Fengfu (GV18) acupoint of the Du Meridian (Governing Vessel), caused by the depletion of Yin Essence allowing toxic fire to ascend. Initially, it resembles a pepper grain, hard and purple-dark. It gradually swells like a horizontal log, extending up to the vertex and down to Dazhui (GV14). The color resembles soot, and hardness resembles ox lips. Before suppuration, the skin may rot first, leaking clear fluid, with cold muscles. Mild cases present with numbness and pain; severe cases involve toxin sinking inward with complete loss of sensation. Urgently apply the Mulberry Wood Roasting Method or Moxa Cone Moxibustion, using pain sensation as the gauge. Quickly take Xianfang Huoming Yin (Immortal Formula for Saving Life) to relieve toxicity. After seven days, if new tissue does not grow or abundant pus does not form, take Shiquan Dabu Tang (Decoction for Complete Great Tonification). If tonifying herbs are ineffective, it is difficult to treat. If initially presenting with intense heat like burning and stinging pain, it is a Yang syndrome; quickly take Huanglian Xiaodu Yin (Coptis Decoction for Detoxification) and apply Waiyang Yulong Gao (Ointment for Restoring Yang and Jade Dragon) externally. If throughout the course only Five Good signs are seen, it is favorable; if Seven Evil signs are seen, it is unfavorable. All other internal and external treatments follow the section on Carbuncles, Ulcers, Swellings, and Ulcerations.
Mulberry Wood Roasting Method & Moxa Cone Moxibustion (See Volume 1)
Xianfang Huoming Yin (Immortal Formula for Saving Life) (See Section on Pre-ulcerative Lesions)
Shiquan Dabu Tang (Decoction for Complete Great Tonification) (See Section on Post-ulcerative Lesions)
Huanglian Xiaodu Yin (Coptis Decoction for Detoxification) (See Bailui Ju mentioned previously)
Waiyang Yulong Gao (Ointment for Restoring Yang and Jade Dragon) (See Section on Pre-ulcerative Lesions)