六安煎(景岳) 治外感咳嗽。
半夏（二钱） 陈皮（一钱五分） 茯苓（二钱） 甘草（一钱） 杏仁（二钱，去皮尖) 白芥子（一钱，
炒研)
加生姜七片，水煎服。寒甚，加细辛七分；愚每用，必去白芥子加五味子、干姜、细辛。
小青龙汤 治一切咳嗽。方见《伤寒》。方中随寒热虚实加减。唯细辛、干姜、五味三
药不去，读《金匮》者自知。
加减小柴胡汤 治发热咳嗽。
柴胡（四钱） 半夏（二钱） 黄芩 炙草（各一钱五分） 干姜（一钱） 五味子（八分）
水二杯半，煎一杯半，去滓，再煎八分，温服，一日二服。
五味子汤(《千金》) 治伤燥咳唾中有血，牵引胸胁痛，皮肤干枯。五味子（五分，研)
桔梗 甘草 紫菀茸 续断 竹茹 桑根皮(各一钱） 生地黄(二钱） 赤小豆(一撮即赤豆之细者)
上九味，水煎空心服。《秘旨》加白蜜一匙。愚按∶赤豆易生扁豆五钱，囫囵不研，最
能退热补肺，但有寒热往来忌之。去续断、赤豆、地黄，加葳蕤、门冬、干姜、细辛亦妙。
麦门冬汤(《千金》) 治大病后火热乘肺，咳唾有血，胸膈胀满，上气羸瘦，五心烦热
，渴而便秘。
麦门冬（二钱，去心) 桔梗 桑根皮 半夏 生地黄 紫菀茸 竹茹（各一钱） 麻黄（七分）
甘草（五分，炙) 五味子（十粒，研) 生姜（一片）
上十一味，水煎，空心服。
六安煎（出自张景岳）治疗外感引起的咳嗽。
半夏（二钱），陈皮（一钱五分），茯苓（二钱），甘草（一钱），杏仁（二钱，去皮和尖端），白芥子（一钱，炒后捣碎）。
加入生姜七片，用水煎煮后服用。如果寒邪严重，加细辛七分；我每次使用此方，必定去掉白芥子，加入五味子、干姜、细辛。
小青龙汤 治疗各种类型的咳嗽。该方的详细组成见《伤寒论》。方中药物根据寒热虚实的不同进行加减。只有细辛、干姜、五味子这三味药不随意去除，研读《金匮要略》的人自然知晓。
加减小柴胡汤 治疗伴有发热的咳嗽。
柴胡（四钱），半夏（二钱），黄芩，炙甘草（各一钱五分），干姜（一钱），五味子（八分）。
用水两杯半，煎至一杯半，滤去药渣，再次煎煮至八分，温服，每日两次。
五味子汤（出自《千金方》）治疗因燥邪损伤导致的咳嗽且唾液中带血，牵引胸胁疼痛，皮肤干枯。五味子（五分，研碎），桔梗，甘草，紫菀茸，续断，竹茹，桑根皮（各一钱），生地黄（二钱），赤小豆（一撮，即细小的红豆）。
以上九味药，用水煎煮，空腹服用。《秘旨》中建议加一勺白蜜。我认为：可以用五钱白扁豆代替赤小豆，整粒不研磨，最能退热补肺，但如果有寒热往来的症状则忌用。去掉续断、赤小豆、生地黄，加入葳蕤（玉竹）、麦冬、干姜、细辛也很妙。
麦门冬汤（出自《千金方》）治疗大病之后火热之邪乘袭肺部，导致咳嗽唾血，胸膈胀满，气逆消瘦，手足心发热，口渴且便秘。
麦门冬（二钱，去心），桔梗，桑根皮，半夏，生地黄，紫菀茸，竹茹（各一钱），麻黄（七分），甘草（五分，炙），五味子（十粒，研碎），生姜（一片）。
以上十一味药，用水煎煮，空腹服用。
Liu'an Decoction (from Zhang Jingyue) treats cough caused by external contraction.
Banxia (Pinelliae Rhizoma, 2 qian), Chenpi (Citri Reticulatae Pericarpium, 1.5 qian), Fuling (Poria, 2 qian), Gancao (Glycyrrhizae Radix et Rhizoma, 1 qian), Xingren (Armeniacae Semen Amarum, 2 qian, peeled and removed of tips), Baijiezi (Brassicae Semenis Albus, 1 qian, stir-fried and crushed).
Add seven slices of Shengjiang (Zingiberis Rhizoma Recens), decoct with water, and take orally. If the cold pathogen is severe, add Xixin (Asari Radix et Rhizoma, 0.7 qian); in my practice, I always remove Baijiezi and add Wubeizi (Schisandrae Fructus), Ganjiang (Zingiberis Rhizoma), and Xixin.
Xiaoqinglong Tang (Minor Green Dragon Decoction) treats all types of cough. The formula composition is seen in *Shanghan Lun* (Treatise on Cold Damage). Modifications are made within the formula according to patterns of cold, heat, deficiency, and excess. Only Xixin (Asari Radix et Rhizoma), Ganjiang (Zingiberis Rhizoma), and Wubeizi (Schisandrae Fructus) should not be arbitrarily removed; those who study *Jingui Yaolue* (Essential Prescriptions from the Golden Cabinet) will know this naturally.
Jiajian Xiaochaihu Tang (Modified Minor Bupleurum Decoction) treats cough accompanied by fever.
Chaihu (Bupleuri Radix, 4 qian), Banxia (Pinelliae Rhizoma, 2 qian), Huangqin (Scutellariae Radix), Zhigancao (Prepared Glycyrrhizae Radix et Rhizoma, each 1.5 qian), Ganjiang (Zingiberis Rhizoma, 1 qian), Wubeizi (Schisandrae Fructus, 0.8 fen).
Use two and a half cups of water, decoct until one and a half cups remain, filter out the dregs, decoct again until eight fen remains, take warm, twice a day.
Wubeizi Tang (Schisandra Decoction, from *Qianjin Fang*) treats cough due to injury by dryness, with blood in sputum, pain radiating to the chest and hypochondrium, and dry, rough skin. Wubeizi (Schisandrae Fructus, 0.5 fen, crushed), Jiegeng (Platycodonis Radix), Gancao (Glycyrrhizae Radix et Rhizoma), Ziwan (Asteris Radix), Xuduan (Dipsaci Radix), Zhuru (Bambusae Caulis in Taeniam), Sanggenpi (Mori Cortex), each 1 qian; Shengdihuang (Rehmanniae Radix, 2 qian); Chixiaodou (Phaseoli Semen Rubrum, one pinch, referring to small red beans).
The above nine ingredients, decoct with water and take on an empty stomach. *Mizhi* suggests adding one spoonful of Baimi (White Honey). In my opinion: Chixiaodou can be replaced by Wubaidou (Dolichoris Semen, 5 qian), taken whole without crushing; this is most effective for clearing heat and tonifying the lung, but it is contraindicated in cases of alternating chills and fever. Removing Xuduan (Dipsaci Radix), Chixiaodou (Phaseoli Semen Rubrum), and Shengdihuang (Rehmanniae Radix), and adding Weirui (Polygonati Odorati Rhizoma), Mendong (Ophiopogonis Tuber), Ganjiang (Zingiberis Rhizoma), and Xixin (Asari Radix et Rhizoma) is also excellent.
Maimendong Tang (Ophiopogon Decoction, from *Qianjin Fang*) treats cough with hemoptysis, chest and diaphragm fullness, upward qi rebellion with emaciation, five-palm heat, thirst, and constipation following serious illness where fire-heat attacks the lung.
Maimendong (Ophiopogonis Tuber, 2 qian, heart removed), Jiegeng (Platycodonis Radix), Sanggenpi (Mori Cortex), Banxia (Pinelliae Rhizoma), Shengdihuang (Rehmanniae Radix), Ziwan (Asteris Radix), Zhuru (Bambusae Caulis in Taeniam), each 1 qian; Mahuang (Ephedrae Herba, 0.7 fen); Zhigancao (Prepared Glycyrrhizae Radix et Rhizoma, 0.5 fen); Wubeizi (Schisandrae Fructus, ten grains, crushed); Shengjiang (Zingiberis Rhizoma Recens, one slice).
The above eleven ingredients, decoct with water and take on an empty stomach.