一阴一阳结谓之喉痹王冰注曰∶一阴肝与心包也。一阳胆与三焦也。四经者，有相火并络于咽喉，气热内
结，结甚则肿胀，胀甚则痹，痹甚则不通而痰塞以死矣。心咳之状，咳则心痛，喉仲介介如梗状甚则咽肿喉痹。
邪客于少阴之络，令人喉痹，舌卷口干心烦。
手阳明少阳厥逆，发喉痹嗌肿 。（《内经》）
喉痹不能言，取足阳明能言，取手阳明（《灵枢》）十二经脉皆上循咽喉，尽得以病之然统其所属，乃在
君相二火而已。盖肺主气天也，脾主食地也，纳气者，从金化，纳食者从土化金性燥，土性湿乃至于病也金化
变动为燥燥则涩涩则闭塞而不仁土化变动为湿，湿则泥，泥则壅胀而不通故在喉曰痹，在咽曰肿，虽有缠喉、
乳蛾、嗌塞、喉干种种之不同，其为火郁上焦，致痰涎气血，结聚于咽喉一也。治法当视火之微甚微则正治，
甚则反治撩痰出血随宜而施。（《准绳》）十二经言嗌干嗌痛咽肿，颔肿舌本强，皆君火为之也惟喉痹急速，
相火之所为也。君火犹人火也，相火犹龙火也，人火焚木，其势缓；龙火焚木，其势速。《内经》之言喉痹，
则咽与舌亦在其间，以其病
同是火，故不分也。治喉痹之火与救火同，不容少待。《内经》火郁发之，发谓发汗，然咽喉岂能发汗？故出
血者，乃发汗之一端也。（喻氏）
“一阴一阳结谓之喉痹”，王冰注释说：所谓一阴，指的是肝和心包经；所谓一阳，指的是胆和三焦经。这四条经脉都有相火并行联络于咽喉部位，若气热在内凝结，凝结严重则导致肿胀，肿胀严重则导致痹阻，痹阻严重则气道不通，痰涎堵塞而致死。
心咳的症状是：咳嗽时伴有心痛，喉咙中有异物感，像被梗塞一样，严重时会出现咽部肿胀和喉痹。
邪气客居在少阴经的络脉，会导致人患喉痹，出现舌头卷缩、口干、心烦等症状。
手阳明经和手少阳经的气机厥逆，会引发喉痹和咽喉肿胀。（出自《内经》）
治疗喉痹导致不能说话的，取足阳明经穴位；能说话的，取手阳明经穴位（出自《灵枢》）。
十二经脉都上行循行经过咽喉，因此都能发生病变。然而统摄其所属病机的，主要在于君火和相火罢了。肺主司气，象征天；脾主司饮食，象征地。纳气者，随金性转化；纳食者，随土性转化。金的性质燥，土的性质湿。以至于生病时，金的转化变动表现为燥，燥则干涩，干涩则闭塞且失去知觉；土的转化变动表现为湿，湿则黏腻，黏腻则壅滞肿胀而不通。所以在喉部称为痹，在咽部称为肿。虽然有缠喉风、乳蛾、嗌塞、喉干等各种不同表现，但其根本原因都是火郁结于上焦，导致痰涎气血结聚于咽喉，这一点是相同的。治疗方法应当根据火的轻重来决定：火轻则用正治法，火重则用反治法，或者采取刮除痰涎、放血等方法，视具体情况施治。（出自《准绳》）
十二经文中提到嗌干、嗌痛、咽肿、下颌肿胀、舌根强直等，都是君火所致。唯独喉痹发病急骤，是相火所致。君火就像人的火，相火就像龙火。人的火烧木头，火势缓慢；龙火烧木头，火势迅猛。《内经》中提到的喉痹，将咽和舌也包含在内，因为它们的病因相同，都是火邪，所以不加区分。治疗喉痹的火邪与救火相同，不容许有丝毫延误。《内经》说“火郁发之”，这里的“发”指发汗，但咽喉部位怎么能发汗呢？因此，放血疗法，就是发汗的一种形式。（出自喻氏）
"One Yin and One Yang knotting is called Hou Bi (throat obstruction)", Wang Bing annotated: The so-called One Yin refers to the Liver and Pericardium meridians; the so-called One Yang refers to the Gallbladder and Sanjiao (Triple Burner) meridians. These four meridians have Ministerial Fire (Xiang Huo, fire associated with metabolic activity) running and connecting to the throat. If Qi-heat knots internally, severe knotting leads to swelling; severe swelling leads to obstruction (Bi); severe obstruction leads to blockage where phlegm blocks the airway, resulting in death.
The manifestation of Heart Cough includes coughing accompanied by heart pain, a sensation of something stuck in the throat as if obstructed, and in severe cases, swelling of the pharynx and Hou Bi (throat obstruction).
When pathogenic factors lodge in the collaterals of the Shaoyin (Lesser Yin) meridian, it causes people to suffer from Hou Bi (throat obstruction), presenting with tongue retraction, dry mouth, and vexation.
Reversal of Qi in the Hand-Yangming and Hand-Shaoyang meridians triggers Hou Bi (throat obstruction) and swelling of the throat and neck. (From *Nei Jing*)
For Hou Bi (throat obstruction) causing inability to speak, select points from the Foot-Yangming meridian; for those who can speak, select points from the Hand-Yangming meridian. (From *Ling Shu*)
All twelve regular meridians ascend along the throat, thus all are susceptible to disease therein. However, the pathology is fundamentally governed by the Sovereign Fire (Jun Huo, physiological fire regulating organ function) and Ministerial Fire (Xiang Huo). The Lung governs Qi, corresponding to Heaven; the Spleen governs food intake, corresponding to Earth. The assimilation of Qi transforms according to Metal properties; the assimilation of food transforms according to Earth properties. Metal is dry; Earth is damp. When disease occurs, the transformation of Metal manifests as dryness, leading to astringency, blockage, and insensibility; the transformation of Earth manifests as dampness, leading to stickiness, stagnation, swelling, and obstruction. Therefore, in the larynx it is termed Bi (obstruction), and in the pharynx it is termed swelling. Although there are various differences such as Chan Hou Feng (strangling wind), Ru E (tonsillar hypertrophy), Ai Sai (pharyngeal blockage), and Hou Gan (dry throat), they all share the same etiology: Fire郁 (stagnation) in the Upper Jiao (Upper Burner), causing phlegm, saliva, Qi, and Blood to accumulate in the throat. Treatment methods should be determined by the severity of the Fire: mild cases require direct treatment (Zheng Zhi), while severe cases require contrary treatment (Fan Zhi). Methods such as scraping phlegm or inducing bleeding should be applied as appropriate. (From *Zhun Sheng*)
The Twelve Meridians texts mention dryness and pain in the Yi (pharynx/throat), swelling of the throat, swelling of the mandible, and stiffness of the tongue base, all caused by Sovereign Fire (Jun Huo). Only Hou Bi (throat obstruction) is rapid in onset, caused by Ministerial Fire (Xiang Huo). Sovereign Fire is like human fire; Ministerial Fire is like Dragon Fire. Human fire burning wood has a slow intensity; Dragon Fire burning wood has a rapid intensity. In the *Nei Jing*, Hou Bi (throat obstruction) includes conditions of the pharynx and tongue because their pathology is identical—both are due to Fire—hence no distinction is made. Treating Fire in Hou Bi (throat obstruction) is akin to extinguishing a fire, allowing no delay. The *Nei Jing* states "Fire stagnation should be dispersed" (Huo Yu Fa Zhi). Here, "Fa" (disperse) refers to sweating. However, how can one induce sweating through the throat? Therefore, bloodletting is considered one form of dispersing (Fa Han). (From Yu Shi)