凡疹出发表之后，红影现于肌肤，切戒风寒生冷，如一犯之，则腠理闭密，毒瓦斯壅滞，遂
变浑身青紫，而毒反内攻，烦躁腹痛气喘闷乱诸证作矣，欲出不出，危亡立至，医家病家皆不可不慎。
疹疮之证，全在调治，禁忌如鸡鱼炙 盐醋五辛之类，直过七七之后方可食之，惟宜清
淡。不可从口恣食，致生他疾也，若误食鸡鱼则终身皮肤粟起如鸡皮鱼靥之状，或遇天行
出疹之时又令重出，误食猪羊肉则每岁凡遇出疹之月多有下利发痧乖疮，误食盐醋致令
咳嗽，则每岁出疹之月必多咳嗽，误食五辛之物则不时多生惊热目赤口臭，此痘疹之家皆所当慎也。
痘疹非热不出，凡疹子欲出必遍身发热，或烦躁，或头眩，或身体拘急，及既出则身便
凉，诸证悉解，此一层疹子随即收者极轻者也，如疹子既出而热甚不减，此毒盛者也，宜大青汤解其毒。便涩
者宜黄连解毒汤合白虎汤或大连翘饮解其里。大便不通者，《局方》凉膈散加牛蒡子主之。
凡疹证多嗽，此顿出顿入之势也。但有疹毒须假嗽多而散，故疹后旬日之内尚宜有嗽，
切不可见嗽多而治嗽也，宜慎之。
疹证属肺与脾胃，肺受火邪则嗽多，嗽多则顿出头面并及四支。大肠受火邪，则上连脾
胃而为泄泻，若早泻则嗽必减而变为喘，盖喘嗽二者皆属于肺。然嗽实喘虚，（德按∶亦有因
毒邪外闭肺胀而喘者）得嗽者出，得喘者入，入则合眼多痰，胸满腹胀，色白而毒不尽出，
证则危矣。此疹之宜嗽不宜喘，而最不宜于泄泻也。
凡是麻疹发出，在发表透疹之后，皮肤上出现红色斑影时，必须严格禁忌风寒和生冷食物。如果一旦触犯，就会导致腠理（皮肤毛孔）闭塞紧密，毒气壅滞不通，从而转变为全身青紫色，且毒邪反而内攻，引发烦躁、腹痛、气喘、胸闷神乱等各种证候。此时疹子欲出而不能出，危险和死亡立刻到来，医生和病家都不可不谨慎对待。
治疗麻疹疮疡，关键在于调理护理，禁忌食用鸡肉、鱼肉、烤炙食品、盐、醋以及五辛（葱、蒜、韭、薤、兴渠等辛辣刺激性食物）之类，直到过了七七四十九天之后才可以食用，饮食只宜清淡。不可以从口中放纵饮食，导致产生其他疾病。如果误食鸡肉或鱼肉，会导致终身皮肤起粟粒状突起，像鸡皮或鱼鳞的样子；或者遇到时行疫病再次出疹的时候，又让疹子重发。如果误食猪羊肉，则每年遇到出疹的月份，大多会出现腹泻、发痧、生恶疮的情况。如果误食盐和醋，会导致咳嗽，那么每年出疹的月份必定会有许多人咳嗽。如果误食五辛之物，则会不时地多生惊风发热、眼睛发红、口臭等症状，这些都是痘疹患者家庭所应当谨慎注意的。
痘疹不是热象就不会发出，凡是麻疹患儿欲出疹时，必然全身发热，或者烦躁，或者头晕目眩，或者身体拘挛紧急，等到疹子发出后，身体就会变凉，各种症状全部解除，这是病情极轻的一类，疹子随即消退。如果疹子已经发出而热势仍然很盛不减退，这是毒邪炽盛的表现，适宜用大青汤来解毒。小便短赤涩痛者，适宜用黄连解毒汤合白虎汤，或者大连翘饮来清解里热。大便不通者，用《太平惠民和剂局方》中的凉膈散加牛蒡子为主治方。
凡是麻疹证候大多伴有咳嗽，这是疹毒顿然发出又顿然入里的趋势。但是因为有疹毒，必须借助咳嗽来使毒邪散发，所以在疹子发出后的十天之内，仍然应该允许有咳嗽现象，切不可看见咳嗽多就去治疗咳嗽，这一点要慎重。
麻疹证候归属于肺和脾胃。肺受到火邪侵袭则咳嗽增多，咳嗽增多则疹毒顿然出头面并波及四肢。大肠受到火邪侵袭，则向上牵连脾胃而导致泄泻。如果过早发生泄泻，咳嗽必然会减少而转变为气喘，因为气喘和咳嗽二者都归属于肺。然而，咳嗽属实证，气喘属虚证。（德按：也有因毒邪外闭导致肺胀而引起气喘的情况）得到咳嗽表现的是毒邪外出，得到气喘表现的是毒邪内陷。毒邪内陷则表现为闭眼、痰多、胸满腹胀、面色苍白而毒邪不能尽出，证候就非常危险了。这就是麻疹适宜咳嗽而不适宜气喘，最不宜于泄泻的原因。
Once the measles rash has been promoted to the exterior and red shadows appear on the skin, one must strictly avoid wind-cold and raw/cold foods. If these are violated, the Cou Li (skin pores and interstices) will become closed and tight, causing toxic factors to stagnate. This leads to a transformation into a whole-body cyanosis, with toxic factors attacking inward, resulting in symptoms such as restlessness, abdominal pain, asthma, chest oppression, and mental confusion. The rash desires to emerge but cannot, leading to imminent danger and death; both physicians and patients must be extremely cautious.
The treatment of measles relies entirely on proper care and dietary restrictions. One must avoid chicken, fish, roasted foods, salt, vinegar, and the "Five Pungent Spices" (Wu Xin, pungent spices like garlic and scallions) until after forty-nine days have passed. Diet should be light and bland. Indulging in food can cause other diseases. If chicken or fish is mistakenly consumed, it may result in lifelong skin eruptions resembling gooseflesh or fish scales, or trigger a recurrence of the rash during epidemic periods. If pork or mutton is mistakenly consumed, diarrhea, Sha syndrome, and malignant sores often occur during months when measles typically appear. If salt and vinegar are mistakenly consumed, coughing ensues, leading to increased cough cases during those months. If the Five Pungent Spices are mistakenly consumed, frequent episodes of fright-heat, red eyes, and foul breath may arise. These are all matters that families dealing with smallpox and measles must heed.
Smallpox and measles do not erupt without heat. When measles are about to erupt, the body invariably becomes feverish, accompanied by restlessness, dizziness, or muscle stiffness. Once the rash emerges, the body cools down, and all symptoms resolve; this indicates a very mild case where the rash recedes quickly. If the fever remains high even after the rash emerges, it indicates excessive toxicity, and Da Qing Tang (Great Blue Decoction) should be used to resolve the toxin. For scanty and painful urination, Huang Lian Jie Du Tang (Coptis Decoction for Resolving Toxicity) combined with Bai Hu Tang (White Tiger Decoction), or Da Lian Qiao Yin (Large Forsythia Drink), should be used to clear interior heat. For constipation, Liang Ge San (Cool the Diaphragm Powder) from the *Ju Fang* (Formulas of the Bureau), augmented with Niu Bang Zi (Arctii Fructus), is indicated.
Measles cases often involve coughing, reflecting the sudden emergence and retreat pattern of the pathogen. However, since the measles toxin requires coughing to help disperse it, some degree of coughing within ten days after eruption is appropriate. Physicians must not treat the cough simply because it is frequent; caution is advised.
Measles pathology involves the Lung and Spleen-Stomach. When the Lung is affected by Fire Evil, coughing increases, causing the rash to suddenly appear on the face/head and spread to the four limbs. When the Large Intestine is affected by Fire Evil, it affects the Spleen and Stomach upward, leading to diarrhea. If diarrhea occurs too early, coughing decreases but transforms into asthma, as both asthma and cough belong to the Lung. Cough represents excess (solidity), while asthma represents deficiency. (Note: There are also cases of asthma due to lung distension caused by external closure of toxic factors.) Cough indicates the outward movement of toxins, while asthma indicates the inward sinking of toxins. Inward sinking presents with closed eyes, profuse phlegm, chest fullness, abdominal distension, pale complexion, and incomplete expulsion of toxins, which is a critical condition. Therefore, measles favor coughing over asthma, and most severely contraindicate diarrhea.