一、痘疮起发之初，全要避风寒，远人物，节饮食，守禁忌。若到养浆之时，尤宜谨慎，如天
气大热则去衣被，当令清凉但谨门窗帷帐，勿使邪气透入；如天寒则宜浓添盖护，房中勿绝灯火；
如或作痒，须为抚摩，勿使搔破，以致难灌，最当慎也。
一、痘疮房中，凡诸臭秽腥香之气，及僧道师巫之人，或骂詈呼怒，震惊歌乐，扫地，对面搔痒，对面梳
头之类，皆不可不避。
一、房中欲辟臭秽，惟烧避邪丹，或红干枣，或黄熟香皆佳。若苍术之气则太峻也。
一、饮食最宜调和，无使太过不及。或好食何物有不宜者，但少与之。以顺其意，苦禁固太严，
使之忿怒，恐反助火邪，但不可纵耳。至若助火生风，及葱蒜泄气等物，皆所当慎。
一、痘疮前后，大忌猪肉、鱼酒之类，恐惹终身痰咳。
一、痘疮平复之后，勿与鸡鸭蛋，食之则伤神。
一、痘疹退后，须避风寒，戒水湿，如犯其邪，则终身咳嗽，患疮无有休日。
东垣曰∶痘疮宜避一切秽恶气及外人入房。远行劳汗气，腋下狐臭气，房中淫液气，麝香臊膻
气，妇人经候诸血腥臭气，硫黄蚊烟气，厕缸便桶气，误烧头发气，吹灭灯烛气，鸡毛鱼骨气，葱
蒜韭薤气，以上皆不可犯。须要时常烧乳香之类甘香之气，使之渐闻，则营卫气畅，可无倒靥陷伏
等患。
陈氏曰∶凡痘疹热渴，切不可与瓜柿蜜水等冷物，及清凉饮、消毒散等药，恐损脾胃，则腹胀
喘闷，寒战切牙而难治。轻变重者，犯房室，不忌口，先曾泻，饮冷水，饵凉药也。重变轻者，避
风寒，常和暖，大便调也。
薛氏曰∶前证苦兼吐泻，手足指冷，属内虚寒而外假热也，最忌寒凉。苦大便不通，渴欲饮水
，则蜜水之类又当用也。但当审其热之虚实可也。今北方出痘，多有用水，无不愈者，盖化方多睡
热炕故也。
一、痘疮在起发初期，必须避开风寒，远离人群，节制饮食，遵守禁忌。到了养浆阶段，尤其应当谨慎：如果天气大热，就要减少衣被，保持清凉，但要小心门窗和帷帐，防止邪气侵入；如果天气寒冷，则应加厚覆盖保暖，房中不要断绝灯火；如果感到瘙痒，需要为其抚摸按摩，不要让患者抓破，以免导致痘疮难以灌浆，这一点最为慎重。
一、痘疮病房中，各种臭秽腥香的气味，以及僧人、道士、巫师等人，或者辱骂呼怒、惊吓歌舞、扫地、当面搔痒、当面梳头等行为，都不可不回避。
一、在房中想要驱除臭秽之气，只有焚烧避邪丹，或者红干枣，或者黄熟香都是很好的选择。苍术的气味则过于猛烈。
一、饮食最适宜调和，不要太过或不及。如果患者想吃某种食物，即使有不宜之处，也只给少量，以顺从其心意。如果禁止得太严厉，使其愤怒，恐怕反而助长火邪，但也不可以放纵。至于那些助火生风，以及葱蒜等泄气的食物，都应当谨慎。
一、痘疮前后，特别忌讳猪肉、鱼、酒之类，恐怕会引发终身的痰咳。
一、痘疹消退后，必须避开风寒，戒除水湿，如果触犯这些邪气，就会终身咳嗽，患疮没有休止之日。
李东垣说：痘疮应该避开一切污秽恶气以及外人进入房间。长途行走的劳汗气，腋下的狐臭气，房中的淫液气，麝香的臊膻气，妇女月经期间的血腥臭气，硫黄蚊烟气，厕所马桶气，误烧头发的烟气味，吹灭灯烛的气，鸡毛鱼骨气，葱蒜韭菜薤白气，以上这些都不可触犯。需要时常焚烧乳香等甘香之气，让患者逐渐闻到，这样营卫之气通畅，就可以避免倒靥陷伏等祸患。
陈氏说：凡是痘疹出现热渴症状时，切不可给予瓜果、柿子、蜜水等冷物，以及清凉饮、消毒散等药物，恐怕损伤脾胃，导致腹胀喘闷、寒战咬牙而难以治疗。轻症变重症的原因，是犯了房事，不忌口，先前曾腹泻，喝冷水，服用凉药所致。重症变轻症的原因，是避开了风寒，经常保持温暖，大便调畅。
薛氏说：前述证候如果苦于兼有呕吐腹泻，手足指头冰冷，属于内虚寒而外假热的情况，最忌讳寒凉药物。如果大便不通，口渴想喝水，那么蜜水之类又应当使用。只应当审察其热的虚实即可。如今北方出痘，多有用水（注：此处原文可能有误或特指某种疗法/环境，结合下文“化方多睡热炕”，意指北方气候或护理方式），无不痊愈的，大概是因为当地人多睡热炕的缘故。
1. In the initial stage of smallpox eruption, it is essential to avoid wind and cold, stay away from people, regulate diet, and observe taboos. When reaching the stage of pustule formation (yangjiang), extra caution is required: if the weather is extremely hot, reduce clothing and bedding to maintain coolness, but be careful with doors, windows, and curtains to prevent pathogenic factors from entering; if the weather is cold, add thick coverings for warmth, and do not extinguish lamps in the room. If itching occurs, gentle massage should be provided to prevent scratching and breaking the skin, which could hinder pus filling; this requires utmost prudence.
2. In the smallpox ward, all foul, fishy, or strong fragrant odors, as well as monks, Taoist priests, shamans, or witches, must be avoided. Behaviors such as cursing, shouting, startling, singing, dancing, sweeping, scratching oneself in front of the patient, or combing hair in front of the patient are all things that must be avoided.
3. To dispel foul odors in the room, burning Bixie Dan (Evil-Avoiding Pill), red dried dates, or Huangshuxiang (Yellow Mature Incense) are excellent choices. The aroma of Atractylodis Rhizoma (Cangzhu) is too harsh.
4. Diet should be harmonized, neither excessive nor insufficient. If the patient desires specific foods, even those slightly unsuitable, give only small amounts to comply with their wishes. Strict prohibition may cause anger, which might aggravate Fire-Pathogen, but one should not indulge either. Foods that generate Fire and Wind, or leek, garlic, and scallion which dissipate Qi, should be used with caution.
5. Before and after smallpox, pork, fish, and alcohol are strictly contraindicated, as they may induce lifelong phlegm-cough.
6. After smallpox has subsided, chicken and duck eggs should not be consumed, as they damage Shen (Spirit).
7. After the rash recedes, one must avoid wind and cold, and refrain from exposure to dampness. Violating these precautions leads to lifelong cough and chronic sores without respite.
Li Dongyuan stated: Smallpox patients should avoid all foul odors and strangers entering the room. This includes sweat from long travel, axillary bromhidrosis (fox odor), sexual fluids, musk and mutton odors, menstrual blood odors from women, sulfur mosquito coil smoke, toilet waste odors, smoke from accidentally burned hair, air from blown-out lamps/candles, chicken feathers and fish bones, and aromas from scallions, garlic, chives, and Allium tuberosum. None of these should be encountered. It is necessary to frequently burn Frankincense (Ruxiang) and other sweet-smelling incenses so the patient gradually inhales them, thereby promoting smooth Ying (Nutrient) and Wei (Defensive) Qi circulation, preventing complications such as inverted pustules or sunken lesions.
Chen stated: In cases of smallpox with heat and thirst, cold substances like melons, persimmons, and honey water, as well as cooling medicines like Liangqing Yin (Cooling Drink) and Xiaodu San (Detoxifying Powder), must absolutely be avoided. Doing so may damage the Spleen and Stomach, leading to abdominal distension, wheezing, stifling sensation, chills, and teeth grinding, which are difficult to treat. Mild cases becoming severe result from engaging in sexual intercourse, failing to observe dietary restrictions, prior diarrhea, drinking cold water, and taking cooling medicines. Severe cases becoming mild result from avoiding wind and cold, maintaining warmth, and having regular bowel movements.
Xue stated: If the aforementioned symptoms are accompanied by vomiting and diarrhea, and cold fingers and toes, it indicates Internal Deficiency-Cold with External False-Heat, making cold-natured medicines strictly contraindicated. However, if there is constipation and intense thirst desiring water, honey water should be administered. One must merely examine whether the Heat is Excess or Deficiency. In Northern China, where smallpox occurs, many use water [therapy/environment], and all recover, likely because people there often sleep on heated kang beds.