陈紫山曰∶痢分赤白二种。世人莫不曰赤为阳，为热，白为阴，为寒；或曰无积不成痢；或以冷热之法互治，
必难取效。不究其原，何可疗治。且四时八风之中人，五运六气之相胜。夏秋人多痢疾，《内经》曰∶春伤于风，
夏生飧泄。岂可拘于无积不成痢之说。岂一岁之中，独于夏秋，人皆有积乎？盖风邪入胃，木能胜土，不为暴泄，
则或痢疾。赤白交杂，此为阴阳不分，法当厘清阴阳为主。又曰∶夹热而痢者，则痢下红色，此风热能动血也。
治法∶推三关，六腑，清心经，和阴阳，推大肠，脾土，运八卦，肾水，揉脐及龟尾。
陈紫山曰∶夹冷而痢者，则下纯白也。或油上有粉红色，或似猪肝凝血，皆为阴症。盖血寒则凝故也。
治法∶推三关，运八卦，脾土，大肠，和阴阳，天门入虎口，揉脐及龟尾。
陈紫山曰∶夏伤于暑，秋必病疟。谓腠理开而汗出遇风也。或得于澡浴水气，舍于皮肤，因卫气不守，邪气
并居，其疾始作。伸欠寒栗，腰背俱痛，骨节烦痛，寒去，则内外皆热，头疼而渴。乃阴阳二气交争，虚实更
作而然。阴气独胜则阳虚，故先寒战栗。阳气独胜则阴虚，故先热。阴胜阳虚，则内外皆寒。阳盛阴虚，则内外俱
热。阴阳各衰，卫气与病气相离则病愈。阴阳相搏，卫气与病气相集则病复。各随其卫气之所在，与所中邪气相
合而然也。
涂蔚生曰∶陈紫山此节之疟疾谈，似有独得之处。然其疟之所以发生寒热之理，尚欠细密，参观第一集秋善
病风疟解释自知。
治法一∶（疟疾兼呕吐者）推三关，脾土分阴阳，运八卦，揉脐。
治法二∶（疟疾一旦发者）推三关，肺经，分阴阳，运八卦，按弦搓摩。
治法三∶（久疟不愈，而脾虚弱者）补脾土，分阴阳，运八卦。
治法四∶（邪疟至晚发者）推三关，脾土，分阴阳，运八卦。六腑，天门入虎口。
治法五∶（瘅疟但热无寒者）推三关，脾土，分阴阳，运八卦，肺经，六腑，内关，天门入虎口，揉斗
肘，间使。
陈紫山说：痢疾分为赤痢和白痢两种。世人没有不说红色属阳、属热，白色属阴、属寒的；或者说没有积滞就不会形成痢疾；或者用治疗冷痢和热痢的方法互相通用，这样一定难以取得疗效。如果不探究其根本原因，怎么能够进行治疗呢？况且四季八风侵袭人体，五运六气相互克制。夏秋季节人们多患痢疾，《黄帝内经》说：“春季受风邪侵袭，夏季就会发生完谷不化的泄泻。”怎么能拘泥于“无积不成痢”的说法呢？难道一年之中，唯独在夏秋两季，人们都有积滞吗？大概是因为风邪侵入胃腑，木气（肝）克制土气（脾），如果不发生暴注下迫的泄泻，就会变成痢疾。如果赤白混杂，这是阴阳之气不分明的表现，治疗方法应当以理清阴阳为主。又说：夹带热邪而患痢疾的，则大便排出红色，这是因为风热扰动血分所致。治疗方法：推三关，退六腑，清心经，调和阴阳，推大肠，补脾土，运八卦，补肾水，揉脐部及龟尾穴。
陈紫山说：夹带寒邪而患痢疾的，则大便排出纯白色。或者粪便表面有粉红色油光，或者像猪肝凝结的血块，这些都是阴证。大概是因为血遇寒则凝滞的缘故。治疗方法：推三关，运八卦，补脾土，推大肠，调和阴阳，推天门入虎口，揉脐部及龟尾穴。
陈紫山说：夏季感受暑邪，秋季必定患疟疾。这是因为腠理开泄而汗出时遇到风邪所致。或者是洗澡时沾染了水气，潜伏在皮肤之间，因为卫气不能固守，邪气聚集，疾病才开始发作。表现为呵欠、怕冷战栗，腰背都疼痛，骨节烦痛，寒气消退后，体内体外都发热，头痛且口渴。这是由于阴阳二气相互争斗，虚实交替出现而造成的。如果阴气单独偏胜则阳气虚弱，所以先出现寒战栗；如果阳气单独偏胜则阴气虚弱，所以先出现发热。阴胜阳虚，则体内体外都寒冷；阳盛阴虚，则体内体外都发热。如果阴阳都衰弱，卫气与病邪之气分离，疾病就会痊愈；如果阴阳相互搏结，卫气与病邪之气相集，疾病就会复发。这都是随着卫气所在的位置，与所中的邪气相结合而形成的。
涂蔚生说：陈紫山关于疟疾的这一节论述，似乎有独到的见解。然而他对于疟疾之所以产生寒热变化的道理，还不够细致严密，参考第一集中关于“秋季善病风疟”的解释自然就知道其中的奥妙了。
治疗方法一：（疟疾兼有呕吐症状的）推三关，脾土分阴阳，运八卦，揉脐。
治疗方法二：（疟疾突然发作的）推三关，清肺经，分阴阳，运八卦，按弦搓摩。
治疗方法三：（久疟不愈，且脾气虚弱的）补脾土，分阴阳，运八卦。
治疗方法四：（邪疟在傍晚发作的）推三关，补脾土，分阴阳，运八卦，退六腑，推天门入虎口。
治疗方法五：（瘅疟但热无寒的）推三关，补脾土，分阴阳，运八卦，清肺经，退六腑，推内关，推天门入虎口，揉斗肘，推间使。
Chen Zishan said: Dysentery is divided into two types: bloody dysentery and white dysentery. People generally say that red indicates Yang and heat, while white indicates Yin and cold; or they claim that without accumulation (food stagnation), dysentery cannot form; or they interchangeably use methods for treating cold dysentery and hot dysentery, which will certainly fail to achieve efficacy. If one does not investigate the root cause, how can treatment be effective? Moreover, when the eight winds of the four seasons invade the human body, and the Five Movements and Six Qi interact in mutual overcoming, people often suffer from dysentery in summer and autumn. The *Neijing* states: "If wind is injured in spring, diarrhea with undigested food occurs in summer." How can one rigidly adhere to the saying that "without accumulation, there is no dysentery"? Is it true that throughout the year, only in summer and autumn do people have accumulations? Generally, when wind pathogen enters the stomach, Wood overcomes Earth. If it does not result in sudden violent diarrhea, it may become dysentery. When red and white are mixed, this indicates a lack of distinction between Yin and Yang. The treatment method should primarily focus on clarifying Yin and Yang. It is also stated: In cases of dysentery complicated by heat, red stool is discharged because wind-heat agitates the blood. Treatment method: Push San Guan (Three Gates), Tui Liu Fu (Push the Six Limbs/Qi Bone), Qing Xin Jing (Clear the Heart Meridian), He Yin Yang (Harmonize Yin and Yang), Tui Da Chang (Push the Large Intestine), Bu Pi Tu (Tonify Spleen Earth), Yun Ba Gua (Rotate the Eight Trigrams), Bu Shen Shui (Tonify Kidney Water), Rou Qi (Knead the Navel) and Gui Wei (Tortoise Tail).
Chen Zishan said: In cases of dysentery complicated by cold, pure white stool is discharged. There may be pinkish oil on the surface, or it may resemble coagulated blood like pig liver; these are all Yin syndromes. This is because blood congeals due to cold. Treatment method: Push San Guan (Three Gates), Yun Ba Gua (Rotate the Eight Trigrams), Bu Pi Tu (Tonify Spleen Earth), Tui Da Chang (Push the Large Intestine), He Yin Yang (Harmonize Yin and Yang), Tui Tian Men Ru Hu Kou (Push Heavenly Gate into Tiger's Mouth), Rou Qi (Knead the Navel) and Gui Wei (Tortoise Tail).
Chen Zishan said: If summer heat is injured in summer, malaria will inevitably occur in autumn. This is because the pores open and sweat is released, leading to exposure to wind. Or, water vapor from bathing lingers in the skin. Because Wei Qi (Defensive Qi) fails to guard, pathogenic factors gather, and the disease begins. Symptoms include yawning, chills, pain in the waist and back, and painful joints. After the cold subsides, both internal and external heat appear, accompanied by headache and thirst. This results from the struggle between Yin and Yang Qi, where deficiency and excess alternate. If Yin Qi alone prevails, Yang becomes deficient, hence chills precede. If Yang Qi alone prevails, Yin becomes deficient, hence fever precedes. When Yin prevails and Yang is deficient, both internal and external are cold; when Yang is excessive and Yin is deficient, both internal and external are hot. If both Yin and Yang decline, and Wei Qi separates from the pathogenic Qi, the illness heals. If Yin and Yang contend, and Wei Qi gathers with the pathogenic Qi, the illness recurs. This depends on where Wei Qi is located and how it combines with the invading pathogen.
Tu Weisheng said: Chen Zishan's discussion on malaria in this section seems to have unique insights. However, his explanation of the mechanism behind the cold and heat fluctuations in malaria lacks sufficient detail and precision. One will understand this naturally by referring to the explanation of "wind malaria prevalent in autumn" in Volume 1.
Treatment Method 1: (For malaria accompanied by vomiting) Push San Guan (Three Gates), Fen Yin Yang of Pi Tu (Spleen Earth), Yun Ba Gua (Rotate the Eight Trigrams), Rou Qi (Knead the Navel).
Treatment Method 2: (For sudden onset of malaria) Push San Guan (Three Gates), Qing Fei Jing (Clear Lung Meridian), Fen Yin Yang (Divide Yin and Yang), Yun Ba Gua (Rotate the Eight Trigrams), An Xian Cuo Mo (Press Strings and Rub).
Treatment Method 3: (For chronic malaria not healing, with weak Spleen) Bu Pi Tu (Tonify Spleen Earth), Fen Yin Yang (Divide Yin and Yang), Yun Ba Gua (Rotate the Eight Trigrams).
Treatment Method 4: (For evil malaria occurring in the evening) Push San Guan (Three Gates), Bu Pi Tu (Tonify Spleen Earth), Fen Yin Yang (Divide Yin and Yang), Yun Ba Gua (Rotate the Eight Trigrams), Tui Liu Fu (Push the Six Limbs/Qi Bone), Tui Tian Men Ru Hu Kou (Push Heavenly Gate into Tiger's Mouth).
Treatment Method 5: (For Dan Malaria with heat but no cold) Push San Guan (Three Gates), Bu Pi Tu (Tonify Spleen Earth), Fen Yin Yang (Divide Yin and Yang), Yun Ba Gua (Rotate the Eight Trigrams), Qing Fei Jing (Clear Lung Meridian), Tui Liu Fu (Push the Six Limbs/Qi Bone), Tui Nei Guan (Push Inner Pass), Tui Tian Men Ru Hu Kou (Push Heavenly Gate into Tiger's Mouth), Rou Dou Zhou (Knead Dou Zhou), Jian Shi (Jianshi Point).