痘毒之为目翳也，自脏而达外，治法只宜活血解毒而已。盖活血不至于热，解毒不
至于冷，五脏平和，其翳自去，切不可用点药，反致损睛。若目闭泪出，不敢见明，惟
黑暗处能开者，此羞明症也，及目中赤者，并宜洗肝明目散主之。若暗处亦不开者，此
目中有疮也，以望月砂散治之。若能开目，只视物昏暗不明者，此血不足也，宜四物加
减主之，然多嵋肝肾有亏当以地黄汤料，其力更胜于四物。若胞高肿而不流泪者，乃脾
经湿热也。当从升阳散湿。
目者，精华之所聚，清阳之所走也。其所以为病者有二。如赤肿暴痛，红障遮睛
者，此真阴不足，风热外乘，病于有火者也，治宜先散邪，以治标，次为重浊滋水以
治本，则浊阴自散，清阳自生，目得血而能视矣。如目无翳障，或生白膜，开目如平
人，视物则不见者，此真阳不足，内脱精光，病于无火者也，治宜大益真阳，专从本
治，元阳得生于中，精光自着于外。倘徒事
养血，何以为如天与目而眸光明之用哉！若妄加清凉发散，则岂徒损目而已，此（张）之鄙见也。
咽痛者。虽云余毒，然症有数端，有风热咳嗽，咽喉不利者，用甘桔防风汤。如咽
痛壮热。痘痕色赤。手足皆热者。此余毒未解也，用柴胡麦冬散。如咽痛而大便不实。
口渴饮汤，手足热者。此脾胃虚寒也。宜五味异攻散。即手指初捏似热，久捏则冷者，
此亦脾胃虚热也，捏宜人参白术散。如咽痛而大便黄色，手足指热，发热作渴，面赤饮
冷者，此胃中实热也，宜泻黄散，或射干鼠粘子汤 如平时向有咽痛，面色素白。两足
常冷，而痘后发热面赤，作渴饮汤，上热足冷咽痛者，此足三阳虚而无根之火上炎也。
即有临时足热之症，亦系阴虚火动耳。凡遇此候而在未痘之时，盒饭壮水之剂，以防临
痘腰痛音哑变黑归肾之症，及既出既靥而有前候者，并用八味丸料，煎与恣饮，再用益
气汤类，助其脾肺，以滋化源，则火退脏而自愈矣。
痘毒导致的眼部翳障，病机是由内脏波及体表，治疗方法只适宜活血解毒即可。因为活血不至于使体内过热，解毒不至于使体内过冷，五脏功能平和，眼部的翳障自然消除，切不可使用点眼药物，反而会导致损伤眼睛。如果眼睛闭合、流泪，不敢见光，只有在黑暗处才能睁开的，这是羞明症；以及眼部发红的，都宜用洗肝明目散主治。如果在暗处也不能睁眼的，这是眼中生疮，用望月砂散治疗。如果能睁开眼，只是看东西昏暗不明的，这是血不足，宜用四物汤加减主治，然而大多伴有肝肾亏损，应当用地黄汤料，其疗效比四物汤更好。如果眼睑高度肿胀但不流泪的，是脾经湿热所致。应当采用升阳散湿的方法。
眼睛，是精华汇聚之处，也是清阳之气运行的通道。眼睛致病的原因主要有两种。如眼睛红肿突发疼痛，红障遮蔽瞳孔的，这是真阴不足，风热外邪侵袭，属于有火的病症，治疗宜先疏散邪气以治标，随后再用重浊滋水之法以治本，则浊阴自然消散，清阳自然生成，眼睛得到血液滋养就能视物了。如眼睛没有翳障，或者生出白膜，睁眼时如同常人，但看东西却看不见的，这是真阳不足，内部精气光芒脱失，属于无火的病症，治疗宜大补真阳，专门从根本治疗，元阳在中焦得以生发，精气光芒自然显露于外。如果仅仅从事养血，怎么能起到像天空一样赋予眼睛眸光明亮的功用呢！如果妄加清凉发散的药物，那么岂止是损伤眼睛而已，这是我的浅陋见解。
咽喉疼痛。虽然说是余毒，但症状有多种情况。如有风热咳嗽，咽喉不利的，用甘桔防风汤。如咽喉疼痛伴壮热，痘痕颜色赤红，手足皆热的，这是余毒未解，用柴胡麦冬散。如咽喉疼痛且大便不成形，口渴想喝热水，手足热的，这是脾胃虚寒，宜用五味异功散。即手指初捏起来似乎发热，久捏则变冷的，这也是脾胃虚热，宜用人参白术散。如咽喉疼痛且大便黄色，手足指热，发热作渴，面赤想喝冷水的，这是胃中实热，宜用泻黄散，或射干鼠粘子汤。如平时常有咽喉疼痛，面色素白，两足常冷，而出痘后发热面赤，作渴想喝热水，上热下足冷咽痛的，这是足三阳虚衰而无根之火上炎所致。即使有暂时性的足热症状，也属于阴虚火动。凡遇到这种情况，在出痘之前，应当服用壮水之剂，以防临出痘时出现腰痛、音哑、变黑归肾的症状；以及已经出痘或结痂而有上述前兆的，均用八味丸料煎服任其饮用，再用益气汤类方药，助益脾肺，以滋生化源，则火退脏安而自愈。
The corneal opacity (Yi, 翳) caused by smallpox toxin originates from the internal organs and extends to the exterior; the treatment method should only focus on invigorating blood and resolving toxicity. Since invigorating blood does not lead to excessive heat, and resolving toxicity does not lead to excessive cold, when the five zang organs are in harmony, the opacity will naturally disappear. One must absolutely avoid using eye drops, as this may instead damage the eyes. If the eyes are closed with tearing, unable to tolerate light, and can only open in darkness, this is photophobia (Xiuming, 羞明). For cases accompanied by redness of the eyes, Xi Gan Ming Mu San (Liver-Washing Eye-Brightening Powder) is the primary prescription. If the eyes cannot open even in darkness, this indicates sores within the eyes, treated with Wang Yue Sha San (Moon Sand Powder). If the eyes can open but vision is dim and unclear, this is due to blood deficiency, treated with Si Wu Tang (Four Substances Decoction) modified. However, since there is often concurrent liver and kidney deficiency, Di Huang Tang (Rehmannia Decoction) material is preferred, as its efficacy surpasses that of Si Wu Tang. If the eyelids are highly swollen without tearing, it is due to damp-heat in the spleen meridian, requiring the method of raising yang and dispersing dampness.
The eyes are the gathering place of essence and brilliance, and the pathway for clear yang qi. There are two main causes for eye diseases. For instance, sudden redness, swelling, and pain, with a red barrier obscuring the pupil, indicates insufficient true yin and external invasion of wind-heat, representing a disease involving fire. Treatment should first disperse pathogens to address the branch (symptoms), followed by heavy, turbid fluids-nourishing methods to address the root, thereby allowing turbid yin to dissipate and clear yang to arise, enabling the eyes to see through blood nourishment. Conversely, if there is no opacity or barrier, or a white membrane forms, and the eyes appear normal when open but vision is lost upon looking at objects, this indicates insufficient true yang and internal depletion of essential brilliance, representing a disease lacking fire. Treatment should heavily tonify true yang, focusing exclusively on the root. When primordial yang is generated internally, essential brilliance will naturally manifest externally. Merely engaging in blood nourishment cannot achieve the function of endowing the eyes with brightness like the sky! If cooling and dispersing agents are recklessly added, the harm will extend far beyond mere eye damage. This is my humble opinion.
Sore throat. Although considered residual toxin, symptoms vary. In cases of wind-heat cough with throat discomfort, Gan Jie Fang Feng Tang (Licorice, Scutellaria, and Saposhnikovia Decoction) is used. In cases of sore throat with high fever, red pock marks, and hot hands and feet, this indicates unresolved residual toxin, treated with Chai Hu Mai Dong San (Bupleurum and Ophiopogon Powder). In cases of sore throat with loose stools, thirst desiring warm drinks, and hot hands and feet, this is spleen-stomach deficiency-cold, treated with Wu Wei Yi Gong San (Five-Ingredient Modified Success Formula). If fingers feel hot initially upon touch but cold after prolonged pressure, this is also spleen-stomach deficiency-heat, treated with Ren Shen Bai Zhu San (Ginseng and Atractylodes Macrocephala Powder). In cases of sore throat with yellow stools, hot finger/toe tips, fever with thirst, red face, and desire for cold drinks, this is excess heat in the stomach, treated with Xie Huang San (Drain Yellow Powder) or She Gan Niu Bang Zi Tang (Belamcanda and Burdock Seed Decoction). In cases where the patient habitually suffers from sore throat, has a pale complexion, cold feet, but after smallpox develops fever, red face, thirst desiring warm drinks, upper body heat with cold feet and sore throat, this is deficient fire flaring upward due to deficiency of the three yang meridians of the foot. Even if temporary foot heat occurs, it is still yin deficiency with fire movement. For such conditions before smallpox eruption, formulas that strengthen water (nourish yin) should be administered to prevent complications like lower back pain, hoarseness, and blackening indicating kidney involvement during eruption. For those who have erupted or crusted over but exhibit these signs, Ba Wei Wan (Eight-Ingredient Pill) decoction should be given freely, followed by Qi Yi Tang (Benefit Qi Decoction) type formulas to support spleen and lung, thereby generating the source of transformation, allowing fire to retreat and organs to heal spontaneously.