病源有人卒大能食。乖其常分。因饥值生葱。便大食之。乃吐一肉块。绕畔有口。其病
则愈。故谓食症。特由不幸。致此妖异成症。非饮食生冷过度之病也。（出第十九卷中）
广济疗食症病食葱瘥方。
有一人食饭七升。并羊脂饼番不论数。因于道中过饥。急食生葱。须臾吐出一实。簿
而圆。绕畔有口无数。即以食投之立消。尽饭七升乃止。吐此物后。其人食病便愈。此名食
症。无忌。（出第二卷中）
千金疗食鱼肉等成症。结在腹内。并诸毒瓦斯方。
狗粪（五升）
上一味烧灰末之。绵裹以酒一斗渍再宿。滤取清。分十服。日三服。三日令尽。随所食
。症结即便出矣。（出第十一卷中）
病源有人因食饮内误有头发。随食而入胃成症。胸喉间如有虫下上来去者是也。（出第
十九卷中）
广济疗发症。乃由人因食而入。久即胸间如有虫上下去来。唯欲得饮油方。
油（一升）
上一味。以香泽煎之。大 铹贮之。安病患头边。以口鼻临油上。勿令得饮。及敷之鼻
面。并令有香气。当叫唤取饮。不得与之。必疲极眠睡。其发症当从口出饮油。人专守视之。
并
浓菜。随发长短。形亦如之无忌。（千金同）
又疗胸喉间觉有症虫上下。偏闻葱豉食香。此是发虫故也方。
油煎葱豉令香。二日不食。张口而卧。将油葱豉置口边。虫当渐出。徐徐以物引去之。
无所忌。（出第二卷中）
【病因】有人突然变得非常能吃，违背了平时的饭量。因为饥饿时遇到生葱，就大量食用，随后吐出一块肉状物，边缘有口，病就好了，所以称为“食症”。这纯属不幸遭遇，导致这种怪异现象形成病症，并非因饮食生冷过度引起的疾病。（出自第十九卷）
《广济方》治疗食症、因吃葱而痊愈的方子：
有一人吃了七升米饭，还有羊脂饼，数量不限。因为在路上经过时感到极度饥饿，急忙吃下生葱。一会儿吐出一个实心的东西，薄而圆，边缘有许多口。立刻拿食物去喂它，它立刻被消化掉。吃完七升饭后才停止。吐出这个物体后，那个人的食欲异常之病就好了。这叫作“食症”，无需忌讳。（出自第二卷）
《千金方》治疗因吃鱼肉等形成的症结，结在腹内，以及诸种毒瓦斯气的方子：
狗粪（五升）
以上一味药，烧成灰并研末，用丝绵包裹，在一斗酒中浸泡两个晚上，过滤取清液，分十次服用，每天三次，三天服完。根据所吃的食物不同，症结就会随之排出。（出自第十一卷）
【病因】有人因为饮食中误吞头发，随食物进入胃中形成症结。感觉胸喉间如有虫子上下往来移动，就是这种情况。（出自第十九卷）
《广济方》治疗发症，是由于人进食时吞入头发所致，时间久了胸间就像有虫子上下往来一样，只有想要喝油的方法：
油（一升）
以上一味药，用香泽（一种香料或植物油脂）煎煮，用大铙锅储存。放在病人头边，让病人的口鼻靠近油上方，不要让病人喝到，也不要涂抹在鼻面上，但要让它散发香气。应当呼唤病人来喝，不要直接给他喝。等到病人疲惫至极睡着时，发症会随着饮用油而从口中排出。人要专门守护看着，并准备浓稠的菜汤，根据头发的长短，排出的形状也类似，无需忌讳。（《千金方》相同）
又治疗胸喉间感觉有症虫上下移动，特别闻到葱豉香味就想吃的方子：
用油煎葱和豆豉直到发出香味。两天不吃饭，张开嘴躺着，将油煎葱豉放在嘴边，虫子会逐渐出来，慢慢用东西将其引出即可，无所忌讳。（出自第二卷）
[Pathogenesis] There are cases where a person suddenly develops an excessive appetite, deviating from their normal portion. Due to hunger and encountering raw green onions (Allium fistulosum), they consume them in large quantities, subsequently vomiting out a meat-like mass with mouths around its periphery, after which the illness is cured. Hence, it is termed "Food Syndrome" (Shi Zheng). This is specifically due to unfortunate circumstances leading to such anomalous manifestations forming a syndrome, rather than being a disease caused by excessive consumption of cold or raw foods. (From Volume 19)
Guangji Formula for treating Food Syndrome and curing it by eating green onions:
A person consumed seven sheng of rice, along with mutton fat cakes, without limit in number. Passing by on the road while extremely hungry, they hastily ate raw green onions. Shortly after, they vomited out a solid object, thin and round, with countless mouths around its periphery. Immediately offering food to it caused it to dissolve instantly. It ceased only after consuming seven sheng of rice. After vomiting this object, the person's abnormal eating disorder was cured. This is named "Food Syndrome," with no dietary restrictions needed. (From Volume 2)
Qianjin Formula for treating syndromes formed by eating fish and meat, knotting inside the abdomen, and various toxic vapors:
Dog feces (five sheng)
Take the above single ingredient, burn it to ash, and grind it into powder. Wrap it in silk, soak it in one dou of wine for two nights, filter to obtain the clear liquid, and divide it into ten doses. Take three doses daily, finishing within three days. Depending on the food ingested, the pathological knot will be expelled accordingly. (From Volume 11)
[Pathogenesis] There are cases where hair is accidentally swallowed during eating or drinking, entering the stomach with food to form a syndrome. The sensation is that something like a worm moves up and down in the chest and throat. (From Volume 19)
Guangji Formula for treating Hair Syndrome, which arises from swallowing hair during meals; over time, there is a sensation in the chest as if a worm is moving up and down. The method involves drinking oil:
Oil (one sheng)
Take the above single ingredient, decoct it with Xiangze (Fragrant泽, likely referring to a fragrant plant oil or essence), store it in a large bronze vessel. Place it beside the patient's head, allowing the patient's mouth and nose to be near the oil surface, but do not let them drink it, nor apply it to the nose and face. Ensure it emits fragrance. Call upon the patient to drink it, but do not give it directly. Wait until the patient is exhausted and falls asleep. The Hair Syndrome will then exit through the mouth along with the drunk oil. A person must guard closely and prepare thick vegetable soup. The shape of the expelled matter will correspond to the length of the hair, with no dietary restrictions needed. (Same as Qianjin)
Another formula for treating the sensation of worms moving up and down in the chest and throat, where there is a specific craving for the aroma of fried green onions and fermented soybeans:
Fry green onions and fermented soybeans in oil until fragrant. Fast for two days, lie with mouth open. Place the fried green onions and fermented soybeans near the mouth. The worms will gradually emerge, and slowly guide them out with tools. No restrictions apply. (From Volume 2)