有外邪，有内伤，有瘀血，皆致咳嗽。惟吃盐太早，咳者难治。
恶血流入肺经，面赤发喘，生化汤合失笑散。（和二十四、攻七）
鼻塞声重，生化汤加杏仁、荆芥。（和二十四）
阴血虚，四物汤去白芍，加人参、白术。（补七）头痛，加莲须。
肺气不足，四君子汤加当归、川芎。（补四）
阴水不足，火克肺金，六味丸加麦冬、花粉。（补二）
肺虚外感风寒，补中益气汤加紫苏、桔梗。（补六）
胃虚不生肺金，异功散加当归、白芍。（补四十九）
半月外干嗽，四物汤加诃子皮、茯苓、甘草、阿胶。（补七）
百日内感风，重嗽汗多，宜加参宁肺生化汤。（补五十五）
气血大虚，恶血乘虚流入诸经，不能复出，故为衄。五色最忌黑，口鼻属肺胃之部，口鼻间气色现黑，肺胃败矣。
又虚火载血上行，不循经度，溢出孔窍，肺胃为热逼，热极反从水化，致口鼻变现黑色，亦危候也。速用童便、淮牛膝、
丹皮、泽兰、二地，倍人参大剂救之。止衄之法，取产妇顶心发一缕，红线一缕，系中指节奇验。
半月内外，寒热往来，或昼、或晚、或夜，寒热交作，应期而发，或一日二三度，其证类疟。总由气虚则寒；血虚
则热；胃气虚则恶寒；胃气下陷则寒热往来。惟大补气血，其病自退。
污血，生化汤加生蒲黄、干荷叶、泽兰、淮牛膝。（和二十四）
饮食停滞，六君子汤加山楂、神曲。（补一）
劳倦伤气，补中益气汤加川芎。（补六）
气血俱虚，十全大补汤加炮姜。（补三十九）
元气脱陷，重用人参加附子。
郁怒伤脾，逍遥散。（和五）
外感风寒，生化汤加荆芥、防风、藿香、生姜。（和二十四）
咳嗽的成因，有外感邪气、内伤饮食劳倦、以及瘀血阻滞三种情况，都会导致咳嗽。唯独产后过早食用盐分者，咳嗽难以治愈。
若恶露不尽之瘀血流入肺经，出现面色发红、气喘的症状，使用生化汤合失笑散治疗。（参考“和法”第24条、“攻法”第7条）
若鼻塞、声音重浊，使用生化汤加杏仁、荆芥治疗。（参考“和法”第24条）
若阴血亏虚，使用四物汤去掉白芍，加入人参、白术。（参考“补法”第7条）若伴有头痛，再加莲须。
若肺气不足，使用四君子汤加入当归、川芎。（参考“补法”第4条）
若肾阴（阴水）不足，导致相火克制肺金，使用六味丸加入麦冬、天花粉。（参考“补法”第2条）
若肺虚且外感风寒，使用补中益气汤加入紫苏、桔梗。（参考“补法”第6条）
若胃气虚弱不能生养肺金，使用异功散加入当归、白芍。（参考“补法”第49条）
若产后半月左右出现干咳，使用四物汤加入诃子皮、茯苓、甘草、阿胶。（参考“补法”第7条）
若产后百日内感受风邪，咳嗽剧烈且汗多，宜使用加参宁肺生化汤。（参考“补法”第55条）
气血严重亏虚时，恶露之瘀血乘虚流入各条经络，无法排出体外，从而导致鼻衄（鼻出血）。五色之中最忌讳黑色，口鼻部位属于肺和胃所主区域，若口鼻间气色呈现黑色，说明肺胃之气已败坏。
另外，若是虚火挟带血液上行，不循常道，溢出孔窍，因肺胃受热逼迫，热极反而转化为寒湿之象（或指热盛伤阴致色黑），导致口鼻显现黑色，这也是危重的征候。此时应迅速使用童便、怀牛膝、牡丹皮、泽兰、生地黄与熟地黄（二地），并重用人参大剂量救治。止血的方法，取产妇头顶心的一缕头发，配合一根红线，系在中指节上，疗效显著。
若在产后半月内外，出现寒热往来，或在白天、晚上、夜间发作，寒热交替出现，按时发作，或一天发作两三次，症状类似疟疾。总的原因是：气虚则发冷；血虚则发热；胃气虚则恶寒；胃气下陷则寒热往来。只有大补气血，疾病自然消退。
若因污血（瘀血）所致，使用生化汤加入生蒲黄、干荷叶、泽兰、怀牛膝。（参考“和法”第24条）
若因饮食停滞所致，使用六君子汤加入山楂、神曲。（参考“补法”第1条）
若因劳累过度损伤元气，使用补中益气汤加入川芎。（参考“补法”第6条）
Cough may be caused by external pathogens, internal injury (such as diet or overwork), or blood stasis. However, cough resulting from consuming salt too early postpartum is difficult to treat.
If lochia (retained blood) flows into the Lung Meridian, presenting with a red face and panting, treat with Shenghua Tang (Decoction for Generating Blood) combined with Shixiao San (Pain-Relieving Powder). (Refer to Harmonizing Method 24, Attacking Method 7)
For nasal congestion and heavy voice, treat with Shenghua Tang (Decoction for Generating Blood) added with Xingren (Apricot Seed) and Jingjie (Schizonepeta). (Refer to Harmonizing Method 24)
For Yin-blood deficiency, treat with Siwu Tang (Four Substances Decoction) removing Baishao (White Peony Root), adding Renshen (Ginseng) and Baizhu (Atractylodes Macrocephala Rhizome). (Refer to Tonifying Method 7). If accompanied by headache, add Lianxu (Lotus Stamen).
For Lung Qi deficiency, treat with Sijunzi Tang (Four Gentlemen Decoction) adding Danggui (Angelica Sinensis) and Chuanxiong (Ligusticum Chuanxiong Rhizome). (Refer to Tonifying Method 4)
For Kidney Yin (Yin Water) insufficiency leading to Ministerial Fire suppressing Lung Metal, treat with Liuwei Wan (Six-Ingredient Pill with Rehmannia) adding Maidong (Ophiopogon Tuber) and Huafen (Trichosanthes Root). (Refer to Tonifying Method 2)
For Lung deficiency with external contraction of Wind-Cold, treat with Buzhong Yiqi Tang (Decoction for Supplementing the Middle and Augmenting the Qi) adding Zisu (Perilla Leaf) and Jiegeng (Platycodon Root). (Refer to Tonifying Method 6)
For Spleen/Stomach deficiency failing to generate Lung Metal, treat with Yigong San (Extra Skill Powder) adding Danggui (Angelica Sinensis) and Baishao (White Peony Root). (Refer to Tonifying Method 49)
For dry cough occurring around half a month postpartum, treat with Siwu Tang (Four Substances Decoction) adding Heqipi (Tornillo Fruit Peel), Fuling (Poria), Gancao (Licorice Root), and Ejiao (Donkey-Hide Gelatin). (Refer to Tonifying Method 7)
For wind contraction within one hundred days postpartum, presenting with severe cough and profuse sweating, use Jiashen Ningfei Shenghua Tang (Shenghua Tang for Calming the Lungs with Ginseng). (Refer to Tonifying Method 55)
When Qi and Blood are severely deficient, lochia enters the meridians due to deficiency and cannot exit, causing epistaxis (nosebleed). Among the five colors, black is most taboo. The mouth and nose belong to the regions of the Lung and Stomach; if black discoloration appears in the mouth and nose, it indicates the failure of Lung and Stomach Qi.
Furthermore, if deficient fire carries blood upward, not following its normal course, overflowing through the orifices, and the Lung and Stomach are pressured by heat, extreme heat may transform into water/cold signs, causing black discoloration in the mouth and nose. This is also a critical condition. Immediately use Tongbian (Child’s Urine), Huainiuxi (Achyranthes Bidentata Root), Danpi (Moutan Cortex), Zelan (Lycopus Lucidus Herba), and Erdi (Rehmanniae Radix Preparata and Rehmanniae Radix Recens), along with a large dose of Ren Shen (Ginseng) for rescue. To stop bleeding, take a strand of hair from the vertex of the parturient woman, tie it with a red thread around the middle joint of the middle finger; this method is highly effective.
Around half a month postpartum, alternating chills and fever may occur, either during the day, evening, or night, with symptoms appearing at regular intervals, two or three times a day, resembling malaria. The root cause is: Qi deficiency leads to chills; Blood deficiency leads to fever; Stomach Qi deficiency leads to aversion to cold; sinking of Stomach Qi leads to alternating chills and fever. Only by greatly tonifying Qi and Blood will the disease recede.
If caused by foul blood (blood stasis), treat with Shenghua Tang (Decoction for Generating Blood) added with Sheng Puhuang (Fresh Typha Pollen), Gan Heye (Dried Lotus Leaf), Zelan (Lycopus Lucidus Herba), and Huainiuxi (Achyranthes Bidentata Root). (Refer to Harmonizing Method 24)
If caused by food stagnation, treat with Liujunzi Tang (Six Gentlemen Decoction) added with Shanzha (Hawthorn Fruit) and Shenqu (Medicated Leaven). (Refer to Tonifying Method 1)
If caused by fatigue injuring Qi, treat with Buzhong Yiqi Tang (Decoction for Supplementing the Middle and Augmenting the Qi) added with Chuanxiong (Ligusticum Chuanxiong Rhizome). (Refer to Tonifying Method 6)
If both Qi and Blood are deficient, treat with Shiquan Dabu Tang (Ten Substance Great Tonifying Decoction) added with Paojiang (Prepared Ginger). (Refer to Tonifying Method 39)
If Yuan Qi (Primordial Qi) collapses and sinks, use a heavy dose of Renshen (Ginseng) combined with Fuzi (Aconite Lateralis Radix Praeparata).
If anger and frustration injure the Spleen, treat with Xiaoyao San (Free and Easy Wanderer Powder). (Refer to Harmonizing Method 5)
If caused by external contraction of Wind-Cold, treat with Shenghua Tang (Decoction for Generating Blood) added with Jingjie (Schizonepeta), Fangfeng (Saposhnikovia Root), Huoxiang (Patchouli Herb), and Shengjiang (Fresh Ginger). (Refer to Harmonizing Method 24)