风寒头痛则发热、恶寒、鼻塞、肢节痛，华盖、五膈、消风散皆可主。若患头风兼头晕者，刺风府穴，不
得直下针，恐伤大筋，则昏闷。向左耳横纹针下，入三四分，留去来二十呼，觉头中热麻是效。若风入太阳则
偏头风，或左或右，痛连两目及齿，灸脑空穴二十一壮，其穴在脑后入发际三寸五分，再灸目窗二穴，在两耳
直上一寸五分，二十一壮，左痛灸左，右痛灸右。（头风之病，证候多端，治得其法者殊少，致为终身痼疾，
先生刺灸二法甚妙，无如医者不知，病者畏痛奈何。）
肝经壅热上攻，致目生昏翳，先服洗肝散数剂，后服拨云散，其翳自去。若老年人肾水枯涸，不能上荣于
目，致双目昏花，渐至昏暗，变为黄色，名曰内障，服还睛丹，半月目热上攻，勿惧。此乃肾气复生，上朝于
目也。如觉热，以手掌揉一番，光明一番，一月间，光生复旧矣。（眼科用药，不循纪律，只用一派发散寒凉，
所谓眼垃圾是也。倘能尽如先生之法而行之，天下丧明者少矣。）
治验
余家女婢，忽二目失明，视之又无晕翳，细思此女，年少精气未衰，何缘得此证，良由性急多怒，有伤
肝脏，故经脉不调而致，遂与密蒙花散一料，如旧光明矣。（病有万变，医止一心，线索在手，头绪逼清，何
惧病体之多端，不愁治疗之无术。）
风寒侵袭引起的头痛，表现为发热、怕冷、鼻塞、四肢关节疼痛，华盖散、五膈散、消风散都可以主治。如果患有头风并伴有头晕症状的，针刺风府穴，不得垂直向下进针，恐怕损伤大筋，会导致昏闷。向左侧耳横纹方向进针，深入三四分，留针期间患者呼吸二十次后出针，感觉头部有热麻感即为有效。如果风邪侵入太阳经，则引起偏头痛，或左或右，疼痛牵连双眼及牙齿，灸脑空穴二十一壮，该穴位在脑后发际线向上三寸五分处，再灸目窗穴两穴，位于两耳尖直上一寸五分处，各灸二十一壮，左侧疼痛灸左侧，右侧疼痛灸右侧。（头风这一疾病，证候表现多种多样，治疗方法得当的极少，导致成为终身顽固性疾病，先生采用的刺灸两种方法非常巧妙，无奈医生不懂，病人害怕疼痛罢了。）
肝经湿热壅盛上攻，导致眼睛产生昏花翳膜，先服用洗肝散几剂，随后服用拨云散，其翳膜自然去除。如果是老年人肾水枯竭，不能上行滋养眼睛，导致双目昏花，逐渐变暗，变成黄色，称为内障，服用还睛丹，半个月后眼睛感到热气上攻，不要恐惧。这是肾气恢复生机，上行朝向眼睛的表现。如果觉得热，用手掌揉按光明穴一次，一个月之间，视力就能恢复如初。（眼科用药，不遵循规律，只用一派发散寒凉的药物，这就是所谓的“眼垃圾”。如果能完全按照先生的方法去施行，天下失明的人就少了。）
治疗案例
我家女婢，忽然双目失明，查看又没有晕翳，仔细思考这个女子，年轻精气未衰，为何得此证，大概是因为性格急躁易怒，损伤了肝脏，所以经脉不调而导致，于是给予密蒙花散一料，像以前一样重见光明。（病情变化万千，医生只需一心一意，线索在手，头绪理清，何必惧怕病体的多变，不愁治疗没有方法。）
Headache caused by Wind-Cold invasion presents with fever, aversion to cold, nasal congestion, and pain in the limbs and joints. Huagai San (Hua Gai Powder), Wuge San (Wu Ge Powder), and Xiaofeng San (Xiao Feng Powder) can all be used as main treatments. If suffering from Toufeng (Head Wind) accompanied by dizziness, puncture the Fengfu (GV16) acupoint. Do not insert the needle vertically downwards, lest it damage the major tendons, which would lead to drowsiness and mental confusion. Insert the needle towards the horizontal crease of the left ear, to a depth of three or four fen. Retain the needle for twenty breaths (hu) during insertion and removal; feeling heat and numbness in the head indicates efficacy. If Wind pathogen invades the Taiyang (Greater Yang) channel, it causes hemicephalic headache (Pian Tou Feng), either on the left or right side, with pain radiating to both eyes and teeth. Moxibustion should be applied to the Naokong (GB13) acupoint for twenty-one moxa cones. This acupoint is located three cun five fen above the posterior hairline at the back of the head. Additionally, moxibustion should be applied to the two Mu Chuang (GB15) acupoints, located one cun five fen directly above the ears, twenty-one moxa cones each. For left-sided pain, moxa the left side; for right-sided pain, moxa the right side. (The disease of Toufeng has diverse manifestations, and few achieve proper treatment methods, resulting in lifelong stubborn ailments. The acupuncture and moxibustion methods proposed by Mr. Dou are excellent, but unfortunately, physicians do not understand them, and patients fear pain.)
Hyperthermia stagnating in the Liver Channel attacking upwards causes visual obscurity and nebula formation. First, administer several doses of Xi Gan San (Xi Gan Powder), followed by Bo Yun San (Bo Yun Powder), after which the nebula will naturally dissipate. In elderly individuals, if Kidney Water is depleted and cannot ascend to nourish the eyes, causing bilateral visual blurring that gradually darkens and turns yellow, this is termed Neizhang (Internal Cataract). Administer Huan Jing Dan (Huan Jing Pill). After half a month, if heat rises in the eyes, do not fear. This signifies the recovery of Kidney Qi ascending to the eyes. If heat is felt, rub the Guangming (GB37) acupoint with the palm once; within a month, vision will recover to its original state. (Ophthalmic medications often disregard principles, relying solely on dispersing and cooling agents, referred to as "eye garbage." If everyone were to follow Mr. Dou's methods, the number of blind people in the world would decrease significantly.)
Clinical Case
A female servant in my household suddenly lost sight in both eyes. Upon examination, there was no visible nebula. Considering she was young and her essence and Qi had not yet declined, I pondered the cause. It was likely due to her irritable and angry temperament, which injured the Liver, leading to irregular meridians and this condition. I prescribed one dose of Mi Meng Hua San (Mi Meng Hua Powder), and her vision returned to normal brightness. (Diseases manifest in myriad ways, while the physician maintains a single focused mind. With the thread of diagnosis in hand and clarity of thought, why fear the complexity of the disease? There is no need to worry about lacking therapeutic strategies.)