《集验》云，凡热病新瘥及大病之后，食猪肉及肠、血、肥鱼、油腻等，必大下痢，医
不能疗也，必至于死。若食饼饵、粢黍、饴脯，脍炙、枣栗诸果，及坚实难消之物，胃气尚
虚弱，不能消化，必更结热，适以药下之，则胃中虚冷，大利难禁，不下必死，下之复危，
皆难救也。热病之后，多坐此死，不可不慎也。病新瘥，但得食糜粥，宁可少食令饥，慎勿
饱，不得他有所食，虽思之勿与，引日转久，可渐食羊肉糜，若羹汁，兔雉鹿肉，慎不可食
猪犬肉也。新瘥后，当静卧，慎勿令人梳头洗面，非但体劳，亦不可多言语，用心使意劳，
凡此皆令劳复。故督邮顾子献得病已瘥未健，诣华 视脉， 曰∶虽瘥，尚虚未复，阳气不
足，勿为劳事，余劳尚可，御内即死，临死当吐舌数寸。其妻闻其夫病除，从百余里来省之
，止宿交接，中间三日发病，舌出数寸而死。病新瘥未经百日，气未平复，而以房室者，略
无不死也，盖正疾愈后六十日，已能行射猎，以房室则吐涎而死，及热病房室，名为阴阳易
之病，皆难疗多死。近者有士大夫，小得伤寒，发汗已十余日，能乘马行来，自谓平复，故
以房室，则小腹急痛，手足拘挛而死。（出第二卷中，《千金》同）
《深师》说天行病未复，（强食黄花菜，手足稍重，一方云青花。）天行病瘥，（食
必变成痴，又食 鱼肉，结气不化。） 天行病瘥，（饮酒合阴阳复必死。） 天行病损，未
满三月日，（食鲻 肉则复下血，食盐豉令人四肢不举。） 天行病瘥，（食诸菜有花者，三
必死，出第十
四卷中。）
《千金》天行病瘥，（后未满五日，食一切肉面者，病更发困。） 天行病瘥，（食芥
脍作疽。） 天行病瘥，（新起饮酒及食薤菜，病更发。） 天行病新瘥，（食生鱼 ，下痢必
《集验》记载，凡是热病刚刚痊愈以及大病之后，如果食用猪肉、猪肠、血制品、肥鱼、油腻食物等，必然导致严重腹泻，医生无法治疗，最终会导致死亡。如果食用饼饵、黄米黍米、饴糖肉脯、生鱼片烤肉、枣栗等各种水果，以及坚硬难消化的食物，由于胃气依然虚弱，无法消化，必然再次产生内热；此时若用药攻下，则会导致胃中虚寒，严重腹泻难以控制，不攻下必死，攻下后也处于危险境地，都难以救治。热病之后，许多人因此死亡，不可不谨慎。
疾病刚痊愈时，只能吃稀粥，宁可少吃保持轻微饥饿感，千万不要吃撑，不得食用其他食物，即使想吃也不要给。经过一段时间逐渐好转后，可以逐渐食用羊肉糜、肉汤，以及兔肉、野鸡肉、鹿肉，但千万不可食用猪肉和狗肉。
大病初愈后，应当安静卧床休息，千万不要让人梳头洗脸，这不仅会使身体劳累，也不宜多说话，用心思或意念操劳，凡此种种都会导致“劳复”（因劳累导致的疾病复发）。所以，督邮顾子献生病刚好但未完全康复，去拜见华佗诊脉，华佗说：“虽然病已痊愈，但身体尚虚弱未恢复，阳气不足，不要从事劳累之事，一般的劳累还可以忍受，但如果进行房事就会死亡，临死前舌头会伸出数寸。”他的妻子听说他病好了，从百余里外赶来探望，留宿并发生性行为，中间过了三天发病，舌头伸出数寸而死。
大病初愈未满百日，气血尚未平复，如果进行房事，几乎没有不死的情况。大概在疾病痊愈后六十天，已经能行走狩猎，如果此时行房事，则会吐出涎沫而死。此外，热病期间或热病初愈行房事，称为“阴阳易”之病，都难以治疗且多致死。
近来有一位士大夫，得了轻微的伤寒，发汗后十多天，能骑马行走，自认为已经康复，于是进行房事，结果小腹急痛，手足拘挛而死。（出自第二卷，《千金方》内容相同）
《深师方》说：天行病（流行性传染病）未恢复时，（强行食用黄花菜，会导致手足沉重，另一说法是青花菜。）天行病痊愈后，（食用某些食物必然变成痴呆，又食用鱼肉，会导致气结不化。）天行病痊愈后，（饮酒行房事必然死亡。）天行病损伤后，未满三个月，（食用鲻鱼肉会导致再次下血，食用盐豉会导致四肢不能举起。）天行病痊愈后，（食用各种有花蔬菜，三日必死，出自第十四卷。）
《千金方》说：天行病痊愈后，（此后未满五日，食用一切肉类面食，病情会再次发作困顿。）天行病痊愈后，（食用芥末生鱼片会形成疽疮。）天行病痊愈后，（新近饮酒及食用薤菜，病情会再次发作。）天行病新近痊愈，（食用生鱼，必然导致腹泻痢疾……）
The *Jiyan* (Collected Experiences) states that for anyone whose febrile disease has just resolved or who is recovering from a major illness, consuming pork, pig intestines, blood products, fatty fish, or greasy foods will inevitably lead to severe diarrhea. Physicians will be unable to treat it, and death will ensue. If one consumes cakes, millet and glutinous rice, malt sugar jerky, raw fish slices, roasted meats, dates, chestnuts, various fruits, and other hard-to-digest solid foods, the stomach qi remains weak and cannot digest them. This will inevitably cause internal heat to accumulate. If purgative medicines are then administered to clear this heat, it will result in cold deficiency of the stomach, making severe diarrhea uncontrollable. Not purging leads to death, while purging leads to critical danger; both are difficult to save. Many people die after febrile diseases due to these causes, so caution is essential.
When a disease has just resolved, only gruel should be consumed. It is better to eat little and remain slightly hungry than to become full. No other foods should be eaten; even if desired, they must not be given. After a period of time, as recovery progresses, mutton gruel, meat broths, rabbit meat, pheasant meat, and venison may be gradually introduced. However, pork and dog meat must absolutely be avoided.
After a new recovery, one should lie quietly and rest. One must avoid having hair combed or face washed, as this causes physical fatigue. Furthermore, one should not speak excessively or engage mental exertion. All such activities can lead to "Lao Fu" (recurrence of disease due to overexertion). For instance, Gu Zixian, a district official, had recovered from an illness but was not yet robust. He consulted Hua Tuo, who palpated his pulse and said, "Although the disease has resolved, you are still deficient and not fully restored. Your yang qi is insufficient. Do not engage in strenuous activities. General fatigue is tolerable, but sexual intercourse will lead to death, with the tongue protruding several inches before dying." His wife, hearing of his recovery, traveled over a hundred li to visit him. They stayed together and engaged in intercourse. Three days later, he fell ill, his tongue protruded several inches, and he died.
If sexual intercourse occurs within one hundred days of a new recovery, when qi and blood have not yet stabilized, death almost invariably results. Generally, sixty days after the resolution of the illness, one might be able to walk or hunt; however, engaging in sexual intercourse at this stage leads to vomiting of saliva and death. Additionally, sexual intercourse during or immediately after a febrile disease is called the disease of "Yin Yang Yi" (exchange of yin and yang), which is difficult to treat and often fatal. Recently, a scholar-official contracted a mild Shanghan (cold damage). After sweating therapy for more than ten days, he could ride a horse and believed himself recovered. Consequently, he engaged in sexual intercourse, resulting in acute abdominal pain, spasm of the limbs, and death. (From Volume II; identical content in *Qianjin Fang*)
The *Shenshi Fang* states: Regarding Tianxing Bing (epidemic infectious disease) not yet recovered, (forcing consumption of daylily causes heaviness in hands and feet; another version mentions blue flowers.) Regarding Tianxing Bing after resolution, (certain foods inevitably lead to dementia; consuming fish and meat causes stagnation of qi and failure to transform.) Regarding Tianxing Bing after resolution, (drinking alcohol and engaging in sexual intercourse leads to certain death.) Regarding damage from Tianxing Bing, if less than three months have passed, (consuming mulberry fish meat causes recurrent hematochezia; consuming salted black beans causes inability to move the limbs.) Regarding Tianxing Bing after resolution, (consuming vegetables with flowers leads to death within three days; from Volume XIV.)
The *Qianjin Fang* states: Regarding Tianxing Bing after resolution, (if less than five days have passed, consuming all types of meat and wheat noodles causes the disease to recur with exhaustion.) Regarding Tianxing Bing after resolution, (consuming mustard and raw fish sashimi leads to the formation of abscesses/ju.) Regarding Tianxing Bing after resolution, (recently drinking alcohol and consuming scallions/leeks causes the disease to recur.) Regarding newly resolved Tianxing Bing, (consuming raw fish inevitably leads to dysentery...)