食疟，一名胃疟。饮食无节，伤胃而成。其证腹痛，中满不能食，食则呕逆，嗳腐吞酸
，其脉气口独盛。戴复庵法∶平胃散加草果、砂仁，吞红丸子。（方见饮食门。）
《先醒斋笔记》，梁溪王兴甫偶食牛肉，觉不快，后遂发疟，饮食渐减，至食不下咽，
已而
水饮亦不下，白汤过喉间，呕出作碧色。药不受，小便一滴如赤茶，大便秘。医皆束手。仲
淳忽至，视之，令仰卧，以指按至心下偏右，大叫，因询得其由。用丸药一服，至喉辄不呕
，水道渐通。次日下黑物数块如铁，其病如失。丸药用矾红和平胃散作末，枣肉丸，白汤下
三钱。
虚疟者，或体虚而病疟，或因疟则致虚，六脉微弱，神气倦怠，是以补养正气为主。经
云∶
疟脉缓大虚，便用药，不宜用针。盖病疟而脉虚，气先馁矣，故不宜用针而宜用药。所谓阴
阳形气俱不足者，勿刺以针，而调以甘药也。
补中益气汤 小建中汤
二方俱补虚散邪之剂。杨仁斋云∶有中年人，脏腑久虚，大便常滑，忽得疟疾，呕吐异
常，
惟专用人参为能止呕，其他疟药并不可施，遂以二陈汤加人参、缩砂，倍用白豆蔻一二服，
病患因自觉气脉顿平，于是寒热不作。盖白豆蔻能消能磨，流行三焦，营卫一转，寒热自平
也。
（新定）人参乌梅散 治虚疟、久疟，少气不食。亦治劳疟，劳疟者，遇劳即发，
经年不差者是。
人参（三钱） 乌梅（一枚） 黄 当归 茯苓 陈皮（各一钱） 鳖甲 制首
乌白术（各二钱）
上都作一服，加姜煎。
食疟，又称胃疟。因饮食没有节制，损伤了胃气而形成。其症状表现为腹痛，脘腹胀满不能进食，进食后则呕吐逆气，嗳气有腐臭味并伴有吞酸感，脉象上气口脉特别盛大。戴复庵的治疗法则：使用平胃散加入草果、砂仁，同时吞服红丸子。（方剂见饮食门。）
《先醒斋笔记》记载，无锡人王兴甫偶然吃了牛肉，感觉身体不适，随后便发作疟疾，饮食逐渐减少，直到食物咽不下去，不久连水饮也无法下咽，即使是白开水经过喉咙，也会呕吐出来且呈碧绿色。药物无法服用，小便仅有一滴如赤茶色，大便秘结。医生们都束手无策。喻昌（字仲淳）忽然来到，查看病情，让患者仰卧，用手指按压到心下偏右的位置，患者大声叫痛，因此询问得知病因。给予丸药一服，药至喉咙就不再呕吐，水道逐渐通畅。第二天排出几块像铁一样的黑色物体，病就好了。丸药用矾红和平胃散制成粉末，用枣肉做丸，白开水送服三钱。
虚疟，有的是因为体质虚弱而患疟疾，有的则是因患疟疾而导致身体虚弱，六脉微弱，精神疲倦懈怠，因此以补养正气为主要治疗原则。《内经》说：“疟疾病人的脉象如果缓大而虚，就应当用药治疗，不适宜用针刺。”大概是因为患疟疾而脉象虚，元气已经衰弱，所以不适宜用针刺而适宜用药。这就是所说的“阴阳形气都不足的人，不要用针刺，而要用甘味药来调理”。
补中益气汤、小建中汤。这两个方子都是补虚散邪的药剂。杨仁斋说：有一位中年人，脏腑长期虚弱，大便经常滑泄，突然得了疟疾，呕吐异常严重，只有专门用人参才能止住呕吐，其他治疟的药都不能施用，于是用二陈汤加入人参、缩砂，加倍使用白豆蔻，一二服药后，病人自己感觉气脉顿时平和，于是寒热症状不再发作。大概是因为白豆蔻能消食磨积，通行三焦，营卫之气一旦运转，寒热自然平息。
（新定）人参乌梅散。治疗虚疟、久疟，表现为少气不想吃饭。也治疗劳疟，所谓劳疟，就是遇到劳累就发作，常年不愈的情况。
人参（三钱）、乌梅（一枚）、黄芪、当归、茯苓、陈皮（各一钱）、鳖甲、制何首乌、白术（各二钱）。
以上药材作为一剂服用，加生姜煎煮。
Food malaria, also known as stomach malaria, is caused by irregular diet damaging the stomach qi. Its symptoms include abdominal pain, fullness in the middle jiao with inability to eat, vomiting and regurgitation after eating, belching with a putrid odor and acid reflux, and the pulse at the qikou (radial artery) position is exclusively vigorous. Dai Fu'an's method: Use Pingwei San (Regulate the Stomach Powder) added with Caoguo (Tsaoko Cardamom Fruit) and Sharen (Amomum Fruit), taken together with Hongwanzi (Red Pill). (Formula seen in the Food Category section.)
*Notes from Xianxing Studio* records that Wang Xingfu from Wuxi accidentally ate beef, felt unwell, and subsequently developed malaria. His food intake gradually decreased until he could not swallow food; soon after, even water could not go down. Even plain white tea passing through the throat was vomited out with a greenish color. Medication was rejected, urine output was reduced to a single drop resembling dark red tea, and severe constipation occurred. Physicians were helpless. Zhongchun (Yu Chang) suddenly arrived, examined him, instructed him to lie on his back, and pressed with his finger to the lower right of the heart region. The patient cried out in pain, revealing the cause upon inquiry. A dose of pill medicine was administered; upon reaching the throat, vomiting ceased, and the digestive tract gradually cleared. The next day, several black lumps like iron were passed, and the illness vanished. The pills were made from Fanhong (Alum Red) and Pingwei San powdered together, formed into pills with jujube paste, and taken with warm water, 3 qian per dose.
Deficiency malaria refers to cases where one contracts malaria due to constitutional weakness, or becomes weak due to malaria. The six pulses are faint and weak, and spirit and qi are fatigued and listless. Therefore, the primary treatment principle is to tonify and nourish healthy qi. The Classics state: "If the pulse in malaria is slow, large, and deficient, medication should be used, and acupuncture is not suitable." This is because when malaria presents with a deficient pulse, qi has already become depleted; thus, acupuncture is unsuitable while medication is appropriate. This corresponds to the principle that for those whose yin, yang, form, and qi are all insufficient, one should not use needles but regulate with sweet medicines.
Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction) and Xiaojianzhong Tang (Minor Construct the Middle Decoction). Both formulas are agents for tonifying deficiency and dispersing pathogens. Yang Renzhai stated: There was a middle-aged man whose zang-fu organs had been deficient for a long time, with frequent loose stools. He suddenly contracted malaria with abnormal vomiting. Only dedicated use of Renshen (Ginseng Root) could stop the vomiting; other antimalarial drugs were ineffective. Thus, Erchen Tang (Two-Aged Phlegm Decoction) was used with added Renshen and Suosha (Cardamom Seed), with Baiddoukou (White Cardamom Seed) doubled. After one or two doses, the patient felt his qi and pulse instantly harmonize, and the chills and fever ceased. This is because Baiddoukou can digest and grind accumulation, circulate through the three jiaos, and once the ying and wei (nutritive and defensive qi) turn, the chills and fever naturally subside.
(Xin Ding) Renshen Wu Mei San (Ginseng and Dark Plum Powder). Treats deficiency malaria and chronic malaria presenting with shortness of breath and anorexia. It also treats laomalaria (consumptive malaria), which is defined as malaria that recurs upon exertion and persists for years without resolution.
Renshen (Ginseng Root) (3 qian), Wu Mei (Dark Plum) (1 piece), Huangqi (Astragalus Root), Danggui (Angelica Sinensis Root), Fuling (Poria), Chenpi (Aged Tangerine Peel) (each 1 qian), Biejia (Tartar Testudinis Carapax et Plastrum), Zhi Heshouwu (Prepared Polygonum Multiflorum Root), Baizhu (Atractylodes Macrocephala Rhizome) (each 2 qian).
All ingredients constitute one dose, decocted with ginger.