治腹胀黄肿，肠鸣泄白。
浓朴（姜汁炒） 陈皮（各五两） 苍术（半斤，米泔水浸，炒） 茯苓 甘草（炙） 人参（各二两）
共为细末，每服三钱，或五钱，姜枣汤调下。
治瘟疫，昔有城中大疫，一白发老人，教富人合施，病者皆愈。疫鬼相顾曰∶此老教三人矣，遂遁。
紫苏 香附（醋制，各二两） 陈皮（去白，一两） 甘草（五钱）
共为细末，每服三钱，水盏半，煎八分温服。
冬月以竹筒一段，刮去青，两头留节，一头打通一窍，以大甘草切碎，内竹筒中，以木塞孔周密，投粪缸中，
浸二三月，到清明取出，晒干收贮待用，大治疫毒。
一逢疫 之时，用贯众一二枚，旁浸日用水缸中，烹茶煮饭，一切俱用此水，疫不能染，活人甚验。
凡遇天行时气，恐其相染，须迟出早入，房中常烧苍术，以其避瘟驱邪。鼻孔涂雄黄，口中嚼大蒜最良。
老君神明散，东坡圣散子，此二方，皆一派辛热燥裂有毒之药，全无扶正驱邪逐秽解毒之品，不知医书何以列
之疫条，必系后人伪托，学人慎勿徇名妄用，害人非浅，虞天民辨之最详，不可不考。
李以理有言，我有所见，辄不能忘。我有所得，得不能公，此与无见无得何异？有所见欣然
忘之，有所得廓然公之，乃昔人传道之虚怀，不必身之所至，目之所营，使闻者心领神会，有以悟
于语言象数之外。妙哉论至此乎！予虽不敏，心窃向往之，为之执鞭，所愿乐焉，故有是刻。
康熙岁在乙卯秋月渔阳林起龙自跋
治疗腹部胀满、身体发黄浮肿，肠鸣音亢进且大便泄出白色黏液。
厚朴（用姜汁炒制） 陈皮（各五两） 苍术（半斤，用米泔水浸泡后炒制） 茯苓 甘草（炙烤） 人参（各二两）
以上药物共同研磨成细末，每次服用三钱或五钱，用生姜和大枣煎汤调服。
治疗瘟疫。过去城中发生大瘟疫，一位白发老人教富人配制此药施舍给病人，患者都痊愈了。疫鬼互相看着说：“这个老人已经教导三人（施药救人）了”，于是逃遁而去。
紫苏 香附（用醋炮制，各二两） 陈皮（去掉白色部分，一两） 甘草（五钱）
以上药物共同研磨成细末，每次服用三钱，用水一盏半，煎煮至八分满，温服。
冬季取一段竹筒，刮去外皮青皮，两头保留竹节，一头打通一个小孔，将大甘草切碎放入竹筒中，用木塞严密堵塞孔洞，投入粪缸中，
浸泡两三个月，到清明节时取出，晒干收藏备用，可大力治疗疫毒之症。
一旦遇到瘟疫之时，使用贯众一二枚，旁边浸泡在每日使用的盛水缸中，烹茶煮饭，一切饮食都用此水，瘟疫不能感染，救人非常有效。
凡是遇到流行性时气病，担心相互传染，必须晚出早归，房中常燃烧苍术，因为它能避瘟驱邪。鼻孔涂抹雄黄，口中咀嚼大蒜是最好的方法。
老君神明散，东坡圣散子，这两个方剂，都是一派辛热燥烈有毒的药物，完全没有扶助正气、驱除邪气、逐除秽浊、解毒的成分，不知道医书为何将它们列在瘟疫条目下，必定是后人伪托之作，学习者千万不要循名而胡乱使用，害人不浅，虞天民辨析得最详细，不可不考察。
李以理曾说，我有所见解，就不能忘记；我有所心得，如果不能公开，这与没有见解、没有心得有什么不同？有了见解就欣然忘我，有了心得就开阔胸怀公之于众，这才是前人传道时的虚怀若谷，不必亲身到达，不必目光所及之处经营，让听者心领神会，在言语和象数之外有所领悟。论述精妙到了这种地步啊！我虽然不聪敏，但内心私下向往它，愿意为之执鞭追随，感到快乐，所以刊刻此书。
康熙年间乙卯年秋季，渔阳林起龙自跋
Treats abdominal distension, yellowish edema, hyperactive bowel sounds, and diarrhea with white mucus.
Houpo (Magnoliae Officinalis Cortex), stir-fried with ginger juice; Chenpi (Citri Reticulatae Pericarpium), each five liang; Cangzhu (Atractylodis Rhizoma), half a jin, soaked in rice-washing water and stir-fried; Fuling (Poria); Zhigancao (Glycyrrhizae Radix et Rhizoma Preparatum), roasted; Renshen (Panacis Ginseng Radix), each two liang.
Grind all into fine powder. Take three or five qian per dose, mixed with decoction of Shengjiang (Zingiberis Rhizoma Recens) and Dazao (Jujubae Fructus).
Treats plague (Yiwen). In the past, during a severe epidemic in the city, a white-haired old man taught wealthy people to prepare and distribute this medicine, and all patients recovered. The plague spirits looked at each other and said, "This old man has already instructed three people," and then fled.
Zisu (Perillae Folium); Xiangfu (Cyperi Rhizoma), vinegar-processed, each two liang; Chenpi (Citri Reticulatae Pericarpium), pith removed, one liang; Gancao (Glycyrrhizae Radix et Rhizoma), five qian.
Grind all into fine powder. Take three qian per dose, decocted in one and a half bowls of water until reduced to eight-tenths full, taken warm.
In winter, take a section of bamboo tube, scrape off the green outer skin, keep the nodes at both ends, drill one small hole through one end. Fill it with chopped Da Gancao (Glycyrrhizae Radix et Rhizoma), seal the hole tightly with a wooden plug, and immerse it in a dung pit for two to three months. Retrieve it around Qingming Festival, dry it, and store it for use. It is highly effective in treating epidemic toxins.
Whenever an epidemic occurs, place one or two pieces of Guanzhong (Cyrtomii Rhizoma) next to the daily water storage vat. Use this water for brewing tea and cooking rice; all food prepared with this water will not be infected by the plague, saving many lives effectively.
Whenever encountering seasonal prevalent diseases (Shiqi), fearing transmission, one should go out late and return early. Burn Cangzhu (Atractylodis Rhizoma) frequently in rooms to ward off pestilence and expel evil. Smell Xionghuang (Realgar) applied to the nostrils, and chew Dasuan (Allii Sativi Bulbus) in the mouth; these are the best methods.
Laojun Shenming San and Dongpo Shengsanzi: These two formulas consist entirely of acrid, hot, drying, cracking, and toxic herbs, lacking any ingredients that tonify healthy qi, expel pathogens, eliminate turbidity, or detoxify. It is unknown why medical texts list them under epidemic categories; they must be later forgeries. Scholars must not blindly use them based on their names, as doing so causes significant harm. Yu Tianmin analyzed this in detail, which cannot be overlooked.
Li Yili stated, "If I have insights, I cannot forget them; if I gain understanding but do not share it publicly, what difference is there from having no insight or understanding?" To joyfully let go of insights once gained, and to openly share understandings with an open mind—this is the humble attitude of predecessors in transmitting knowledge. One need not physically reach every place or manage every sight; rather, let listeners grasp the essence intuitively, realizing truths beyond words and numerical symbols. How profound such discourse can be! Although I am not intelligent, I secretly yearn for this state and would gladly follow even as a humble servant holding the whip. Therefore, I commissioned this publication.
Postscript by Lin Qilong of Yuyang, Autumn of the Yimao Year, Kangxi Reign.