论曰，咽喉卒肿痛者，脾肺暴热，胸膈壅滞，上攻咽喉，故发肿痛也，亦有服饵丹石过
度，毒瓦斯在胃，多嗜五辛酒面，冲于脾肺，皆致斯疾，源虽不同，其为热则一。
治咽喉卒肿痛。龙脑散方
龙脑（研一分） 犀角（镑） 丹砂（研） 白药子（各三分） 真珠（研） 黄 （锉）
甘草
（炙各半两） 牙硝（研一两）
上八味，捣研为散，拌匀再罗，每服二钱匕，新汲水调下，不拘时候。
治风热毒瓦斯，攻咽喉卒肿痛，头面肿。涂敷方
杏仁（汤浸去皮尖双仁半两） 鸡子（一枚去壳）
上二味，同研匀，敷肿处即消，若浓黄汁出者，醋调伏龙肝涂之。
治咽喉卒肿痛，不下食方
薤根（一把切）
上一味，炒至焦捣烂，于肿处贴，以帛子系之。
治咽喉卒肿痛，不下食方
附子（半枚生捣）
上一味，细罗为散，入竹管内，吹入喉中。
治咽喉卒肿痛，不下食方
生地龙（十四枚）
上一味，烂捣涂喉外，以帛系之，兼治痈发喉中。
治咽喉卒肿痛，不下食方
鸡子（一枚去壳）
上搅令黄白匀服之。
治咽喉卒肿痛，不下食方
白面（不计多少）
上一味，以苦酒和，涂喉外肿处。
治咽喉卒肿痛，不下食方
大豆（一合）
上一味，以水一大盏，煮取七分，去滓含咽，一方用豉。
治咽喉卒肿痛，不下食方
桂（去粗皮半两）
上一味，捣罗为散，绵裹一钱，放舌下，咽津即瘥。
治咽喉卒肿痛，不下食方
白矾（少许）
上一味，研碎，以绵裹含，咽津即瘥。
治上焦壅热，咽喉卒肿疼痛不利。恶实散方
恶实（微炒令香一两） 甘草（炙一分） 荆芥（去梗半两）
上三味，捣罗为细散，每服二钱匕，水五分一盏，煎令沸温服，沸汤点服亦得。
Discussion states that sudden swelling and pain of the throat (Yanhou) result from sudden heat in the Spleen and Lung, stagnation in the chest and diaphragm, with pathogenic factors attacking upward to the throat. It may also be caused by excessive intake of cinnabar and realgar pills (Danshi), leading to toxic fumes retained in the Stomach, or by excessive consumption of pungent spices, alcohol, and wheat products, which attack the Spleen and Lung. Although the origins differ, the nature of the pathology is essentially Heat.
Formula for Longna San (Borneol Powder) to treat sudden throat swelling and pain:
Longna (Borneolum Syntheticum, ground, 1 fen) Xijiao (Rhinocerotis Cornu, shaved) Dansha (Cinnabaris, ground) Baiyaizi (Stemonae Radix, each 3 fen) Zhenzhu (Margarita, ground) Huangqin (Scutellariae Radix, chopped) Gancao (Glycyrrhizae Radix et Rhizoma, processed with honey, each 0.5 liang) Yanxiao (Natrii Sulfas, ground, 1 liang).
The above eight ingredients are crushed, ground into powder, mixed evenly, and sieved again. Take 2 qianbi per dose, mixed with fresh cold water, at any time.
External application formula to treat wind-heat toxic fumes attacking the throat causing sudden swelling and pain, and facial swelling:
Xingren (Prunus armeniaca Seed, soaked in hot water, skin and tips removed, double-kernel selected, 0.5 liang) Jizi (Galli Ovum Shell, one egg, shell removed).
The above two ingredients are ground together until uniform and applied to the swollen area to reduce swelling. If thick yellow exudate appears, mix Fulonggan (Caos Tergite) with vinegar and apply.
Formula to treat sudden throat swelling and pain with difficulty swallowing:
Xiegen (Allii Macrostemonis Bulbus, one handful, cut).
The above single ingredient is stir-fried until charred, pounded into a paste, applied to the swollen area, and secured with a cloth bandage.
Formula to treat sudden throat swelling and pain with difficulty swallowing:
Fuzi (Aconiti Lateralis Radix Praeparata, half a piece, raw and pounded).
The above single ingredient is finely sieved into powder, placed in a bamboo tube, and insufflated into the throat.
Formula to treat sudden throat swelling and pain with difficulty swallowing:
Dilong (Pheretima, fourteen pieces).
The above single ingredient is pounded into a paste and applied externally to the throat, secured with a cloth bandage. This also treats carbuncles developing within the throat.
Formula to treat sudden throat swelling and pain with difficulty swallowing:
Jizi (Galli Ovum Shell, one egg, shell removed).
The above single ingredient is beaten until the yolk and white are uniformly mixed, then ingested.
Formula to treat sudden throat swelling and pain with difficulty swallowing:
Baifeng (Tritici Vulgaris Farina, amount unspecified).
The above single ingredient is mixed with Kujiu (Vinegar) and applied to the external swollen area of the throat.
Formula to treat sudden throat swelling and pain with difficulty swallowing:
Dadou (Sojae Semen Preparatum, one he).
The above single ingredient is boiled in one large cup of water until reduced to seven-tenths volume. Strain and hold in the mouth to swallow. An alternative version uses Chidou (Fermented Sojae Semen).
Formula to treat sudden throat swelling and pain with difficulty swallowing:
Guizhi (Cinnamomi Ramulus, coarse bark removed, 0.5 liang).
The above single ingredient is crushed and sieved into powder. Wrap 1 qian in cotton, place under the tongue, and swallow saliva to achieve recovery.
Formula to treat sudden throat swelling and pain with difficulty swallowing:
Baifan (Alumen, a small amount).
The above single ingredient is ground into fragments, wrapped in cotton, held in the mouth, and swallow saliva to achieve recovery.
Formula for Eshi San (Arctii Fructus Powder) to treat upper jiao heat obstruction, sudden throat swelling, pain, and dysphagia:
Eshi (Arctii Fructus, lightly stir-fried until fragrant, 1 liang) Gancao (Glycyrrhizae Radix et Rhizoma, processed with honey, 1 fen) Jingjie (Schizonepetae Spica, stems removed, 0.5 liang).
The above three ingredients are crushed and sieved into fine powder. Take 2 qianbi per dose, boil in half a cup of water until boiling, and take warm. Alternatively, it can be prepared with boiling water.