素问云∶夫疟疾皆生于风。又云∶夏伤于暑，秋必病疟，此四时之气使然也。或乘凉过
度
夫病之始发也，必先起于毫毛，伸欠乃作，寒栗鼓颔，头痛如破，渴欲饮冷，或先寒后热
或先热后寒，或热多寒少，或寒多热少，或但热不寒，或但寒不热，或一日一发，或间日
发，或三日一发。一日一发者易治，
有所谓瘅疟、寒疟、温疟、食疟、
弦数者多热，弦迟者多寒，弦小
大者宜吐之。久而不愈，胁下痞满结为
法。
治寒多热少，或但寒不热，头痛恶心，胸满 呕，身体疼痛，栗栗振寒，面色青白
进饮食，脉来弦迟。
浓朴（姜制。炒） 藿香叶 半夏（汤泡七次） 白茯苓（去皮。各一两） 人参 甘
草（炙） 橘红（各三分） 草果仁 苍术（米泔水浸一宿，削去皮，锉、炒。各
上 咀，每服四钱，水一盏半，生姜七片，枣子一枚，煎至八分，去滓，温服，不拘时。
多寒者内加附子煎。
治瘅疟，脉来弦数，但热不寒，或热多寒少，膈满能食，口苦舌干，心烦渴水，小
赤，大腑不利。
青皮（去白） 浓朴（姜制，炒） 白术 草果仁 柴胡（去芦） 茯苓（去皮） 半
夏（汤泡七次） 黄芩 甘草（炙。各等分）
上 咀，每服四钱，水一盏半，姜五片，煎至七分，去滓，温服，不拘时候。
万安散治一切疟疾，得病之初，以其气壮，进此药以取效。气虚胃弱及妊妇不宜服之。
苍术（
浸一宿） 甘草
夜露一宿，当发日，分作两服。荡温早晨进一服，俟其发时，再进一服，忌食热物片时。
《素问》说：疟疾都是由于风邪引起的。又说：夏季感受暑邪，秋季必定发生疟疾，这是四季气候变化的结果。有的人因为乘凉过度……
疾病刚开始发作时，一定先感觉毫毛竖立，接着打哈欠，出现寒战、下巴颤抖，头痛剧烈如要破裂，口渴想喝冷水。有的先怕冷后发热，有的先发热后怕冷，有的热多寒少，有的寒多热少，有的只发热不怕冷，有的只怕冷不发热，有的每天发作一次，有的隔一天发作一次，有的三天发作一次。每天发作一次的容易治疗。
有所谓的瘅疟、寒疟、温疟、食疟……脉象弦数的多属热证，脉象弦迟的多属寒证，脉象弦小大的适宜用吐法。如果久治不愈，胁下痞满结块形成……（原文此处有缺漏）
治疗寒多热少，或只怕冷不发热，头痛恶心，胸中胀满呕吐，身体疼痛，瑟瑟畏寒，面色青白，不能进食，脉象来势弦迟。
用药：厚朴（姜制，炒）、藿香叶、半夏（汤泡七次）、白茯苓（去皮，各一两）、人参、甘草（炙）、橘红（各三分）、草果仁、苍术（米泔水浸泡一夜，削去外皮，切碎，炒，各一两）。
以上药材切碎，每次服用四钱，加水一盏半，生姜七片，大枣一枚，煎煮至八分满，滤去药渣，温服，不限时间。寒邪重的加入附子同煎。
治疗瘅疟，脉象来势弦数，只发热不怕冷，或热多寒少，膈部胀满能进食，口苦舌干，心烦想喝水，小便短赤，大便不通畅。
用药：青皮（去白）、厚朴（姜制，炒）、白术、草果仁、柴胡（去芦头）、茯苓（去皮）、半夏（汤泡七次）、黄芩、甘草（炙，各等分）。
以上药材切碎，每次服用四钱，加水一盏半，生姜五片，煎煮至七分满，滤去药渣，温服，不限时间。
万安散治疗各种疟疾，在发病初期，因为患者正气尚壮实，服用此药以取得疗效。气虚胃弱及孕妇不宜服用。
夜间露水浸泡一夜，发病当天，分作两次服用。早晨未发时服用一次，等到发作时再服用一次，暂时忌食热性食物。
The *Suwen* (Plain Questions) states: All malaria arises from wind pathogens. It also states: Summer injury by summer-heat leads to malaria in autumn; this is caused by the qi of the four seasons. Some cases result from excessive exposure to coolness...
When the disease first begins, it must start with the hair follicles erecting, followed by yawning, then chills and shivering of the jaw, severe headache as if breaking, thirst desiring cold drinks. There are cases of cold preceding heat, or heat preceding cold; cases where heat is more than cold, or cold more than heat; cases of only heat without cold, or only cold without heat; cases occurring once a day, every other day, or once every three days. Cases occurring once a day are easier to treat.
There are what are called Dan malaria (febrile malaria), Han malaria (cold malaria), Wen malaria (warm malaria), Shi malaria (food stagnation malaria)... A wiry and rapid pulse indicates mostly heat; a wiry and slow pulse indicates mostly cold; a wiry, small, and large pulse indicates suitability for emesis therapy. If not cured after a long time, fullness and binding in the hypochondrium form... [text missing]
For treating cold predominating over heat, or only cold without heat, accompanied by headache, nausea, chest fullness and vomiting, body pain, shivering aversion to cold, blue-white complexion, inability to eat, and a wiry-slow pulse:
Ingredients: Houpo (Cortex Magnoliae Officinalis, processed with ginger juice, stir-fried), Huoxiang Ye (Folium Pogostemonis), Banxia (Rhizoma Pinelliae, soaked in boiling water seven times), Baifuling (Poria, peeled, each 1 liang), Renshen (Radix Ginseng), Gancao (Radix Glycyrrhizae, honey-fried), Juhong (Pericarpium Citri Reticulatae, each 3 fen), Caoguoren (Semen Tsaoko), Cangzhu (Rhizoma Atractylodis Lanceae, soaked in rice washing water overnight, skin removed, sliced, stir-fried, each 1 liang).
Crush the above ingredients. Take 4 qian per dose, add 1.5 zhan of water, 7 slices of Shengjiang (Fresh Ginger Rhizome), and 1 Zaozi (Jujube fruit). Decoct until 0.8 zhan remains, remove dregs, and take warm at any time. For those with excess cold, add Fuzi (Radix Aconiti Lateralis Preparata) and decoct together.
For treating Dan malaria (Febrile Malaria), with a wiry-rapid pulse, only heat without cold, or heat more than cold, diaphragmatic fullness with ability to eat, bitter taste in mouth, dry tongue, vexation, thirst for water, scanty red urine, and constipation:
Ingredients: Qingpi (Exocarpium Citri Grandis, white pith removed), Houpo (Cortex Magnoliae Officinalis, processed with ginger juice, stir-fried), Baizhu (Rhizoma Atractylodis Macrocephalae), Caoguoren (Semen Tsaoko), Chaihu (Radix Bupleuri, radix removed), Fuling (Poria, peeled), Banxia (Rhizoma Pinelliae, soaked in boiling water seven times), Huangqin (Radix Scutellariae), Gancao (Radix Glycyrrhizae, honey-fried, equal parts).
Crush the above ingredients. Take 4 qian per dose, add 1.5 zhan of water, 5 slices of Shengjiang (Fresh Ginger Rhizome). Decoct until 0.7 zhan remains, remove dregs, and take warm at any time.
Wan'an San (Ten Thousand Safety Powder) treats all types of malaria. At the beginning of the illness, when the patient's qi is strong, this medicine is taken to achieve efficacy. It is not suitable for those with deficient qi, weak stomach, or pregnant women.
Ingredients: Cangzhu (Rhizoma Atractylodis Lanceae, soaked in rice washing water overnight), Gancao (Radix Glycyrrhizae)... [text missing]
Soak overnight in dew. On the day of the attack, divide into two doses. Take one dose in the morning before the fever starts, and take the second dose when the fever occurs. Avoid hot-natured foods for a period.