卫气者所以温分肉充皮肤肥腠理司开阖者也故风邪中于卫也则必恶风恶风恶寒俱为表证但恶风比恶寒为轻耳恶寒
者虽不当风而时自怯寒恶风者居密室之中帏幕之内则无所畏或当风或挥扇则淅淅然而恶也恶寒则有阴阳之分恶风惟属
阳耳所以三阴之证并无恶风恶风虽在表而发散又自不同若无汗恶风则为伤寒当发其汗故用麻黄汤若汗出恶风则为中风
当解其肌故用桂枝汤里证虽具而恶风未罢皆当先解其外也发热恶风为表虚属太阳病(见发热太阳病条)发汗后遂汗漏不
止其证似风湿相搏证背恶风汗出小便不利四肢难以屈伸但心下不满者身不痛用桂枝加附子汤(见自汗)风湿相搏者骨节
烦疼掣痛用甘草附子汤(方见体痛)身热恶风项强胁满手足温而渴者用小柴胡汤(见胁痛)
伤寒头痛虽属三阳惟太阳经独多盖太阳为病属表而头痛专为主表虽有伤寒六七日头痛不大便有热而与承气汤下之
者却云若小便清者知热不在里仍在表是知头痛属表明矣太阴少阴二经之脉从足至胸而还不上循头故无头痛惟厥阴脉循
喉咙之后上连目系与督脉会于巅亦有头痛干呕吐涎沫吴茱萸汤一证却无身热亦与阳证不同也然风温病在少阴湿温病在
太阴而头反痛至于阴毒亦然是又不可拘拘为者内因头痛作止有时外因头痛常常有之直须传入里方罢
发热头痛恶风属太阳(方论见太阳病发热)大便(汗) 不利六七日头痛身热小便赤者宜承气汤若小便利者知不在
里仍在表须发汗若头痛者必衄宜桂枝汤(论见胃实)服(和解) 桂枝汤或下之仍头项强痛翕翕发热兼心下满微痛小便
不利者桂枝去桂加茯苓白术汤(方论见项强)太阳(下)中风下利呕逆表解者可攻之其人 汗出发作有时头痛心下痞
硬引胁下痛干呕短气汗出不恶寒者表解里未和也十枣汤(方论见胁满痛)
张 或谓十枣汤与桂枝去桂加茯苓白术汤二者皆属饮家俱有头项强痛之病何也此经络所系非偶尔而言也针经曰
太
阳膀胱之脉起于目内 皆上额交巅上其支者从巅上至耳上角直者从巅入络脑还出至下项循肩膊内侠脊抵腰中入循膂络
肾属膀胱上文所络肾者即三焦也夫三焦者为阳气之父决渎之官引导阴阳开通闭塞水道出以化气而言也缘太阳经多血少
气既病则气愈弱其时表病而里热未甚微渴而恣饮水浆为水多气弱不能施化遂停伏于内则本经血气因而凝滞致有头痛项
强之患矣若伏饮流行经络疏利而头痛自愈矣
病(温)发热头痛脉反沉若不瘥身痛当救里四逆汤(论见发热)太阳病(刺)头痛至七日以上自愈者以行其经尽故
也若欲作再经者针足阳明使经不传则愈(伤寒自一日至六日传三阳三阴经尽至七日当愈经曰七日太阳病衰头痛少愈若七
日不愈则太阳之邪再传阳明针足阳明为迎而夺之使经不传则愈(吴)脉浮头痛太阳也须刺腕骨京骨又云表证头疼恶寒发
热刺合谷)
阳明(和解)身热头痛漱水不欲咽必发衄脉数者犀角地黄汤茅花汤(见鼻衄)阳明病表里大热烦渴引饮头痛如破者
宜竹叶石膏汤 阳明头痛不恶寒反恶热大便实调胃承气汤 阳明病反无汗而小便利二三日呕而咳手足厥者必苦头痛若
不咳不呕手足不厥者头不痛(内经曰巨阳受邪少阴为里得热则上从之厥也太阳与少阴为合此证当是太阳未全罢耳经又曰
阳明则喘而 则恶人小便利者寒邪内攻肢厥头痛者寒邪外攻也)
吴 阳明头痛额前目疼鼻干脉长也无汗者葛根加葱白白芷汗之若有汗曾经发汗头痛不解者宜葛根葱白汤主之若
不
恶风而反恶热自汗烦渴脉洪数饮水头疼者白虎加白芷汤主之若内有燥屎蒸蒸发热头痛者调胃承气汤主之凡阳明头痛无
汗者葛根麻黄葱白白芷石膏之属也有汗则白芷石膏葛根川芎汤也
伤寒(和解)脉弦细头痛发热者属少阳不可发汗汗之则谵语此属胃胃和则愈胃不和则烦而悸宜小柴胡汤(论见口苦)
吴 少阳经头痛头角或耳中痛脉弦数口苦发热往来寒热者并用小柴胡汤和之一方加川芎尤妙盖川芎亦胆经药也
凡
少阳头痛不分有汗无汗皆以柴胡汤主之不时头痛及发寒热脉紧不大即是上膈有痰瓜蒂散吐之
头痛干呕吐涎沫者吴茱萸汤(方论见吐)活人云厥阴头痛为欲愈小建中汤
活 若已发汗或未发汗头痛如破者用连须葱白汤
连须葱白汤方
葱白(连须切半升) 生姜(二两)上以水二升煮取一升分二次温服再不止者宜服后方
葛根葱白汤方
葛根 芍药 知母(各半两) 川芎 葱白 生姜(各一两)上以水三升煎至一升热服 若不时头疼胸中满及发寒
热脉紧而不大者即是膈上有涎宜用瓜蒂末一钱暖水调下吐涎立愈
云 伤寒汗下后头痛起目眩者宜独活汤
防风 独活 旋复花 当归(各七钱)上 咀姜水同煎服
伤寒热病后头痛不止者用石膏川芎汤
石膏 川芎(各一两)上 咀每服五钱水煎服
海 太阳头痛有汗桂枝汤无汗麻黄汤 阳明头痛白虎汤 少阳头痛小柴胡汤 太阴头痛脉浮桂枝汤脉沉理中汤
俱加川芎细辛 少阴头痛小柴胡汤麻黄附子细辛汤 厥阴头痛外伤本经桂枝麻黄各半汤 呕而微吐苦水者吴茱萸汤
垣 太阴头痛者必有痰也少阴头痛者足寒而气逆也盖太阴少阴二经虽不至头然痰与气逆壅于膈中则头上气不得
畅降而为痛也
云 如脉浮而头痛过在手足太阳刺完骨京骨 如脉浮而长过在手足阳明刺合谷冲阳 如脉浮而弦过在手足少阳
刺阳池邱墟风府风池此刺头痛之法也
集 伤寒头痛刺谷攒竹
卫气,是用于温煦肌肉、充实皮肤、肥厚腠理并主管汗孔开阖的气。因此,风邪侵袭卫分,必然导致恶风。恶风和恶寒都属于表证,但恶风比恶寒程度轻。所谓恶寒,是指即使不吹到风,也时常感到怕冷;所谓恶风,是指在密室帷帐之中无所畏惧,但若当风吹拂或挥动扇子,就会感到瑟瑟发抖而厌恶。恶寒有阴证和阳证的区分,而恶风只属于阳证。所以三阴病都没有恶风的症状。
恶风虽然属于表证,但其发散治疗又有所不同:若无汗且恶风,则属于伤寒,应当发汗,故使用麻黄汤;若汗出且恶风,则属于中风,应当解肌,故使用桂枝汤。即使里证已经具备,只要恶风未罢,都应当先解除表邪。发热伴恶风属于表虚,归属于太阳病(参见“发热·太阳病”条)。发汗后出现汗漏不止,其症状类似风湿相搏证,表现为背部恶风、汗出、小便不利、四肢难以屈伸,但如果心下没有痞满感,身体也不痛,应使用桂枝加附子汤(参见“自汗”)。若是风湿相搏证,则骨节烦疼、掣痛,应使用甘草附子汤(方剂见“体痛”)。若身热、恶风、项强、胁满、手足温且口渴,应使用小柴胡汤(参见“胁痛”)。
伤寒引起的头痛虽属三阳经病,但唯独太阳经最多。因为太阳病属于表证,而头痛专主表证。虽然有伤寒六七日,头痛且大便不通,有热象而使用承气汤攻下的情况,但文中又说“如果小便清亮,说明热不在里,仍在表”,由此可知头痛属于表证明显。太阴经和少阴经的脉气从足上行至胸而回,不上循头部,所以这两经的病没有头痛。只有厥阴经的脉气循喉咙之后,上连目系,与督脉会于头顶,所以也有头痛。吴茱萸汤证出现的干呕吐涎沫,却没有身热,这与阳证不同。然而,风温病在少阴,湿温病在太阴,反而出现头痛,这又是不可拘泥固定的。内因引起的头痛发作有定时,外因引起的头痛常常存在,直到病邪传入里证才会停止。
发热、头痛、恶风属于太阳病(方论见“太阳病·发热”)。大便不利,六七日头痛、身热、小便赤者,宜用承气汤;若小便通利,说明病不在里,仍在表,须发汗;若头痛,必致鼻衄,宜用桂枝汤(论见“胃实”)。服用桂枝汤或经过攻下治疗后,仍然头项强痛、翕翕发热、兼有心下满微痛、小便不利者,用桂枝去桂加茯苓白术汤(方论见“项强”)。太阳中风下利、呕逆,表解后可以攻里的,其人汗出、发作有时、头痛、心下痞硬、牵引胁下痛、干呕、短气、汗出且不恶寒,这是表解里未和,用十枣汤(方论见“胁满痛”)。
张景岳说:有人问十枣汤与桂枝去桂加茯苓白术汤,两者都适用于水饮病患者,都有头项强痛的病症,为什么呢?这是因为经络所系的缘故,并非偶然而言。《针经》说:太阳膀胱经起于目内眦,皆上额交巅上;其支者从巅上至耳上角;直者从巅入络脑,还出至下项,循肩膊内,侠脊抵腰中,入循膂,络肾,属膀胱。上文所说的“络肾”,即指三焦。夫三焦为阳气之父,决渎之官,引导阴阳,开通闭塞,水道出以化气。由于太阳经多血少气,既病则气更弱,此时表病而里热未甚,微渴而恣意饮水浆,因水多气弱不能施化,遂停伏于内,则本经血气因而凝滞,导致有头痛项强的患疾。若伏饮流行,经络疏利,则头痛自愈。
王好古说:病(温病)发热头痛,脉反沉,若不愈,身痛当救里,用四逆汤(论见“发热”)。太阳病头痛,至七日以上自愈的,是因为行其经尽的缘故。若要防止再传经,针刺足阳明经,使经不传则愈。(伤寒自一日至六日传遍三阳三阴经,至七日当愈。经曰:七日太阳病衰,头痛少愈。若七日不愈,则太阳之邪再传阳明,针刺足阳明为迎而夺之,使经不传则愈。)吴崑说:脉浮头痛,属太阳,须刺腕骨、京骨。又说:表证头疼恶寒发热,刺合谷。
阳明病(和解法):身热、头痛、漱水不欲咽,必发鼻衄,脉数者,用犀角地黄汤、茅花汤(见“鼻衄”)。阳明病表里大热、烦渴引饮、头痛如破者,宜竹叶石膏汤。阳明头痛,不恶寒反恶热,大便实,用调胃承气汤。阳明病反无汗而小便利,二三日呕而咳,手足厥者,必苦头痛;若不咳不呕,手足不厥者,头不痛。(《内经》曰:巨阳受邪,少阴为里,得热则上从之厥也。太阳与少阴为合,此证当是太阳未全罢耳。经又曰:阳明则喘而……则恶人。小便利者,寒邪内攻;肢厥头痛者,寒邪外攻也。)
吴崑说:阳明头痛,额前目疼、鼻干、脉长,无汗者,用葛根加葱白、白芷发汗;若有汗,曾经发汗头痛不解者,宜葛根葱白汤主之。若不恶风而反恶热,自汗、烦渴、脉洪数、饮水头疼者,白虎加白芷汤主之。若内有燥屎,蒸蒸发热、头痛者,调胃承气汤主之。凡阳明头痛无汗者,用葛根、麻黄、葱白、白芷、石膏之类;有汗则用白芷、石膏、葛根、川芎汤。
伤寒(和解法):脉弦细、头痛、发热者,属少阳,不可发汗,汗之则谵语。此属胃,胃和则愈,胃不和则烦而悸,宜小柴胡汤(论见“口苦”)。
吴崑说:少阳经头痛,头角或耳中痛,脉弦数,口苦,发热往来寒热者,并用小柴胡汤和解。一方加川芎尤妙,盖川芎亦胆经药也。凡少阳头痛,不分有汗无汗,皆以柴胡汤主之。不时头痛及发寒热,脉紧不大,即是上膈有痰,瓜蒂散吐之。
头痛、干呕吐涎沫者,吴茱萸汤(方论见“吐”)。李时珍《活人书》云:厥阴头痛为欲愈,用小建中汤。
连须葱白汤方:葱白(连须切半升)、生姜(二两)。上以水二升,煮取一升,分二次温服。再不止者,宜服后方。
葛根葱白汤方:葛根、芍药、知母(各半两)、川芎、葱白、生姜(各一两)。上以水三升,煎至一升,热服。若不时头疼,胸中满及发寒热,脉紧而不大者,即是膈上有涎,宜用瓜蒂末一钱,暖水调下,吐涎立愈。
李时珍《活人书》云:伤寒汗下后头痛起目眩者,宜独活汤。防风、独活、旋复花、当归(各七钱)。上咀,姜水同煎服。
伤寒热病后头痛不止者,用石膏川芎汤。石膏、川芎(各一两)。上咀,每服五钱,水煎服。
朱丹溪说:太阳头痛,有汗用桂枝汤,无汗用麻黄汤;阳明头痛用白虎汤;少阳头痛用小柴胡汤;太阴头痛,脉浮用桂枝汤,脉沉用理中汤,俱加川芎、细辛;少阴头痛用小柴胡汤、麻黄附子细辛汤;厥阴头痛外伤本经用桂枝麻黄各半汤;呕而微吐苦水者用吴茱萸汤。
李杲(垣)说:太阴头痛者必有痰也;少阴头痛者足寒而气逆也。盖太阴、少阴二经虽不至头,然痰与气逆壅于膈中,则头上气不得畅降而为痛也。
李时珍《活人书》云:如脉浮而头痛,过在手足太阳,刺完骨、京骨;如脉浮而长,过在手足阳明,刺合谷、冲阳;如脉浮而弦,过在手足少阳,刺阳池、邱墟、风府、风池。此刺头痛之法也。
Wei Qi (Defensive Qi) is the qi that warms the muscles, fills the skin, thickens the interstices (Cou Li), and controls the opening and closing of the pores. Therefore, when Wind Evil invades the Wei level, it inevitably causes aversion to wind. Aversion to wind and aversion to cold are both exterior syndromes, but aversion to wind is milder than aversion to cold. "Aversion to cold" refers to feeling chilly even without exposure to wind; "aversion to wind" means having no fear while residing in a sealed room or behind curtains, but shivering and feeling discomfort when exposed to wind or fanning oneself. Aversion to cold can be divided into Yin and Yang syndromes, whereas aversion to wind belongs exclusively to Yang syndromes. Thus, there is no aversion to wind in the Three Yin diseases.
Although aversion to wind is an exterior syndrome, its treatment for dispersing differs: if there is no sweating and aversion to wind, it is Cold Damage (Shang Han) and requires diaphoresis, so Mahuang Tang (Ephedra Decoction) is used; if there is sweating and aversion to wind, it is Wind Strike (Zhong Feng) and requires resolving the muscle layer, so Guizhi Tang (Cinnamon Twig Decoction) is used. Even if interior symptoms are present, as long as aversion to wind has not ceased, the exterior must be resolved first. Fever with aversion to wind indicates exterior deficiency and belongs to Taiyang Disease (see "Fever · Taiyang Disease"). After diaphoresis, if sweating continues unceasingly, resembling Wind-Dampness binding, with back aversion to wind, sweating, dysuria, and difficulty flexing/extending the limbs, but without epigastric fullness or body pain, Guizhi Jia Fuzi Tang (Cinnamon Twig Decoction plus Aconite) should be used (see "Spontaneous Sweating"). If it is Wind-Dampness binding, causing severe bone joint pain and pulling pain, Gancao Fuzi Tang (Licorice and Aconite Decoction) is used (formula see "Body Pain"). If there is fever, aversion to wind, neck stiffness, hypochondriac fullness, warm hands/feet, and thirst, Xiaochaihu Tang (Minor Bupleurum Decoction) is used (see "Hypochondriac Pain").
Headache caused by Cold Damage belongs to the Three Yang meridians, but is most common in the Taiyang meridian. This is because Taiyang disease is an exterior syndrome, and headache specifically indicates an exterior condition. Although there are cases of Cold Damage lasting six or seven days with headache, constipation, and heat signs treated with Chengqi Tang (Gut-Regulating Decoction) to purge, the text states, "If urine is clear, it indicates heat is not in the interior but remains in the exterior." This confirms that headache clearly belongs to the exterior. The TAIYIN and SHAOYIN meridians ascend from the foot to the chest and return, not reaching the head; therefore, their diseases do not involve headache. Only the JOUYIN meridian ascends along the throat, connects to the eye system, and meets the Du Meridian at the vertex, thus also causing headache. In the case of Wuzhuyu Tang (Evodia Decoction), dry vomiting and spitting of saliva occur without fever, which differs from Yang syndromes. However, in Wind-Warmth disease affecting Shaoyin and Damp-Warmth disease affecting Taiyin, headache may still occur; this shows one cannot rigidly adhere to fixed rules. Headaches due to internal causes have specific timing, while those due to external causes are constant until the pathogen enters the interior.
Fever, headache, and aversion to wind belong to Taiyang (formula theory see "Taiyang Disease · Fever"). If bowel movements are difficult, and after six or seven days there is headache, fever, and dark urine, Chengqi Tang is appropriate; if urination is smooth, the disease is not in the interior but remains in the exterior, requiring diaphoresis; if headache occurs, epistaxis will likely follow, and Guizhi Tang is indicated (theory see "Stomach Excess"). If, after taking Guizhi Tang or undergoing purgation, head and neck stiffness, mild fever, epigastric fullness with slight pain, and dysuria persist, Guizhi Qu Gui Jia Fuling Baizhu Tang (Cinnamon Twig Decoction minus Cinnamon Twig plus Poria and Atractylodes Macrocephala Decoction) is used (formula theory see "Neck Stiffness"). In Taiyang Wind Strike with diarrhea and vomiting, once the exterior is resolved, interior excess can be attacked. If the patient sweats intermittently, has headache, epigastric hardness radiating to the hypochondrium, dry retching, shortness of breath, sweating, and no aversion to cold, this indicates the exterior is resolved but the interior is disharmonious; Shizao Tang (Ten Date Decoction) is used (formula theory see "Hypochondriac Fullness and Pain").
Zhang Jingyue said: Some ask why both Shizao Tang and Guizhi Qu Gui Jia Fuling Baizhu Tang apply to patients with fluid retention who experience head and neck stiffness. This is due to meridian connections, not coincidence. The *Needle Classic* states: The Taiyang Bladder Meridian originates at the inner canthus, crosses the vertex; its branch goes from the vertex to the supra-auricular angle; the straight branch enters the brain from the vertex, emerges at the lower nape, follows the shoulder blades, runs alongside the spine to the waist, enters the muscles, connects to the Kidney, and belongs to the Bladder. The "connecting to Kidney" mentioned above refers to the Sanjiao (Triple Burner). The Sanjiao is the father of Yang Qi, the official of waterways, guiding Yin and Yang, opening blockages, and transforming Qi through water passages. Since the Taiyang meridian has abundant blood but scarce Qi, disease weakens the Qi further. At this time, with exterior pathology and mild interior heat causing slight thirst, excessive drinking of fluids overwhelms the weak Qi's transformative power, causing fluid retention internally. This stagnates the blood and Qi of the primary meridian, leading to headache and neck stiffness. If the retained fluid circulates and the meridians are cleared, the headache resolves spontaneously.
Wang Haogu said: In Warm disease, if there is fever, headache, and a deep pulse, and if it does not improve with body pain, the interior must be rescued using Sini Tang (Frigid Extremities Decoction) (theory see "Fever"). In Taiyang disease, headache may resolve spontaneously after seven days because the meridian cycle is complete. To prevent transmission to the next stage, needle the Foot-Yangming meridian to stop transmission. (Cold Damage transmits through the Three Yang and Three Yin meridians over six days and should resolve on the seventh day. The Classic says: On the seventh day, Taiyang disease declines, and headache lessens. If it does not resolve, Taiyang evil transmits to Yangming; needling Foot-Yangming to drain excess stops transmission.) Wu Kun said: Floating pulse with headache indicates Taiyang; needle Waangu (SI4) and Jinggu (BL64). Also, for exterior syndrome headache with aversion to cold and fever, needle Hegu (LI4).
Yangming disease (Harmonizing method): Body heat, headache, rinsing mouth without swallowing, likely epistaxis, rapid pulse: use Xijiao Dihuang Tang (Rhinoceros Horn and Rehmannia Decoction) and Maohua Tang (Thistle Flower Decoction) (see "Epistaxis"). Yangming disease with severe interior/exterior heat, irritability, thirst, and crushing headache: use Zhuye Shigao Tang (Bamboo Leaf and Gypsum Decoction). Yangming headache with aversion to heat rather than cold, solid stool: use Weitiao Chengqi Tang (Gentle Gut-Regulating Decoction). Yangming disease with anhidrosis but smooth urination, vomiting, cough, and cold extremities after two or three days implies severe headache; if no vomiting/cough and warm extremities, no headache. (*Inner Classic*: Juyang [Taiyang] receives evil, Shaoyin is interior; heat ascends causing cold extremities. Taiyang and Shaoyin are paired; this case suggests Taiyang is not fully resolved. Another classic says: Yangming involves panting... aversion to people. Smooth urination indicates internal cold attack; cold extremities and headache indicate external cold attack.)
Wu Kun said: Yangming headache, frontal orbital pain, nasal dryness, long pulse, anhidrosis: use Gegen Tang (Kudzu Decoction) plus Congbai (Scallion White) and Baizhu (Angelica Dahurica) to induce sweating. If sweating occurred previously and headache persists, use Gegen Congbai Tang (Kudzu and Scallion White Decoction). If no aversion to wind but aversion to heat, spontaneous sweating, irritability, thirst, rapid/huge pulse, and headache upon drinking: use Baihu Jia Baizhu Tang (White Tiger Plus Angelica Dahurica Decoction). If dry feces cause steaming fever and headache: use Weitiao Chengqi Tang. For Yangming headache with anhidrosis, use Gegen, Mahuang, Congbai, Baizhu, Shigao (Gypsum); for sweating, use Baizhu, Shigao, Gegen, Chuanxiong Tang.
Cold Damage (Harmonizing method): String-tight/fine pulse, headache, fever belong to Shaoyang; do not induce sweating, as this leads to delirium. This relates to the Stomach; if Stomach harmonizes, recovery occurs; if not, irritability and palpitations ensue. Use Xiaochaihu Tang (theory see "Bitter Taste").
Wu Kun said: Shaoymeridian headache, temporal or ear pain, string-tight/rapid pulse, bitter taste, alternating chills and fever: use Xiaochaihu Tang to harmonize. Adding Chuanxiong (Ligusticum) is excellent as it enters the Gallbladder meridian. For all Shaoyang headaches, regardless of sweating, use Chaihu Tang. Intermittent headache with chills/fever and tight/small pulse indicates phlegm in the upper jiao; use Gengti San (Seed Melon Powder) to induce vomiting.
Headache with dry vomiting and spitting saliva: Wuzhuyu Tang (formula theory see "Vomiting"). *Li Ren Shu* says: Jouyin headache indicates impending recovery; use Xiaojianzhong Tang (Minor Construct the Middle Decoction).
Li Dongyuan said: For headache like breaking, whether after sweating or not, use Lianxu Congbai Tang (Scallion White with Roots Decoction).
**Lianxu Congbai Tang Formula**: Scallion White with roots (half sheng, cut), Ginger (two liang). Boil in two sheng of water to obtain one sheng; take warm in two doses. If ineffective, use the following formula.
**Gegen Congbai Tang Formula**: Gegen (Kudzu Root), Shaoyao (Peony Root), Zhimu (Anemarrhena Rhizome) (each half liang); Chuanxiong (Sichuan Lovage Rhizome), Congbai (Scallion White), Shengjiang (Fresh Ginger) (each one liang). Boil in three sheng of water to obtain one sheng; take hot. For intermittent headache, chest fullness, chills/fever, and tight/small pulse indicating phlegm in the jiao, use one qian of Gengdi powder mixed with warm water to induce vomiting of phlegm for immediate relief.
*Li Ren Shu* says: For headache and vertigo after sweating/purgation in Cold Damage, use Duhuo Tang (Angelica Pubescens Decoction). Fangfeng (Siler Root), Duhuo (Angelica Pubescens Root), Xuanjinhua (Inula Flower), Danggui (Angelica Sinensis Root) (each seven qian). Chew slightly, decoct with ginger water.
For persistent headache after febrile disease, use Shigao Chuanxiong Tang (Gypsum and Ligusticum Decoction). Shigao (Gypsum), Chuanxiong (each one liang). Chew slightly, take five qian per dose, decoct in water.
Zhu Danxi said: Taiyang headache with sweating uses Guizhi Tang; without sweating, Mahuang Tang. Yangming headache uses Baihu Tang. Shaoyang headache uses Xiaochaihu Tang. Taiyin headache: floating pulse uses Guizhi Tang; deep pulse uses Lizhong Tang; both add Chuanxiong and Xixin. Shaoyin headache uses Xiaochaihu Tang or Mahuang Fuzi Xixin Tang. Jouyin headache involving external injury to the primary meridian uses Guizhi Mahuang Gehan Tang (Half-Half Decoction of Cinnamon Twig and Ephedra). Vomiting with slight bitter fluid regurgitation uses Wuzhuyu Tang.
Li Gao (Yuan) said: Taiyin headache always involves phlegm; Shaoyin headache involves cold feet and rebellious Qi. Although Taiyin and Shaoyin meridians do not reach the head, phlegm and rebellious Qi obstructing the chest prevent Qi from descending smoothly to the head, causing pain.
*Li Ren Shu* says: For floating pulse with headache, affect Hand/Foot-Taiyang; needle WanGu (SI4) and Jinggu (BL64). For floating/long pulse, affect Hand/Foot-Yangming; needle Hegu (LI4) and Chongyang (ST42). For floating/string-tight pulse, affect Hand/Foot-Shaoyang; needle Yangchi (TE4), Qiuxu (GB40), Fengfu (DU16), Fengchi (GB20). These are methods for needling headache.
*Yi Zong Jin Jian* collection notes: For Cold Damage headache, needle Gu (LI15?) and Zanzhu (BL2).