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To treat *San Yin* malaria (malaria affecting the three yin meridians), Shen Yiting (courtesy name Qingxiu) from Zhenze transmitted a prescription: use 3 qian of Hawthorn Fruit (*Crataegi Fructus*), Areca Seed (*Arecae Semen*), Bitter Orange Peel (*Aurantii Fructus*), and Sweet Tea (*Camellia sinensis*) each. Decoct in water and take one dose two hours before the onset of malaria, which cures immediately. It is said that trials on many people were effective. I consider this prescription potent; it is suitable for those with weak constitutions (often referring to commoners or those with deficient qi) and for malaria in its early stages. Wu Xiaozheng stated that his sixth-generation ancestor, Mr. Shan Nian, recorded in his manuscript a prescription for chronic *San Yin* malaria, transmitted from his maternal grandfather, Mr. Zhu Zhu. The prescription uses 8 qian of raw Polygonum multiflorum Root (*Polygoni Multiflori Radix*), 4 qian of raw Scutellaria Root (*Scutellariae Radix*), and 4 qian of Agastache Herb (*Agastachis Herba*). Decoct in water and take three doses before the onset, curing immediately. This prescription is particularly suitable for those with rich diets (often referring to elites or those with damp-heat accumulation). Both prescriptions have been tested by me as effective, yet they are rarely recorded in medical texts.

Kong Yili's *Treatise on Dysentery* states that five-color dysentery should be treated by warming and tonifying the Spleen and Kidney. I treated a case of five-color dysentery using warming methods and achieved a cure. However, *Feng Shi Jin Nang* mentions "a section on excess syndrome of five-color dysentery," suggesting such a syndrome might exist, though he had never seen it. I once treated a child with five-color dysentery presenting with thirst and fever, using the *Pteris semipinnata* prescription from Wan Mizhai's *Prescriptions for Preserving Life*. One dose cured him. This prescription primarily treats red-and-white dysentery, but can also treat five-color dysentery, demonstrating its miraculous efficacy. (Generally, five-color dysentery has distinctions between cold and heat patterns; cold-pattern cases are difficult to treat, while heat-pattern cases are easier.) The prescription is recorded below: A large handful of *Pteris semipinnata* Herb with roots (those from bamboo groves or near wells are best; if unavailable, those from other regions are usable, also known as Chicken Foot Grass), one spoonful of aged Cangmi (processed Coix Seed), three slices of aged Ginger with skin, three stalks of Scallion White with roots. Use three large bowls of water, decoct until one bowl remains, strain, add half a small cup of distilled liquor, and three teaspoons of pure honey. Mix well, drink one small cup while hot, repeat after a while, finishing within one day. Avoid sour foods, raw/cold items, fried foods, and hard-to-digest pastries. My commentary: The *Bencao* records that *Pteris semipinnata* is extremely cold in nature and treats heat-toxin dysentery. Practitioners must confirm the absence of deficiency-cold patterns before use.

Dysentery characterized by thirst and abdominal pain indicates excess-heat. Danxi stated: If there is no thirst, no body heat, and a preference for warm compresses, it is called cold-complicated dysentery. Li Shicai stated: Thirst should be differentiated by preference for hot or cold drinks; abdominal pain should be differentiated by urgency, response to pressure, abdominal distension, and pulse strength to distinguish excess from deficiency. This caution arises from the tendency to universally classify thirst and abdominal pain as excess-heat. Then, do cases without thirst and abdominal pain necessarily belong to deficiency-cold? Ancients also stated: Dysentery followed by diarrhea indicates transmission from Kidney to Spleen, a minor pathogen, easy to treat; diarrhea followed by dysentery indicates transmission from Spleen to Kidney, a destructive pathogen, difficult to treat. I applied this theory clinically but encountered cases of diarrhea preceding dysentery, without thirst or abdominal pain, making it hard to distinguish excess-heat from deficiency-cold. Later, reading Qin Huangshi's *Syndrome, Etiology, and Pulse Diagnosis*, I found: In early damp-heat dysentery, watery diarrhea occurs first, followed by pus and blood after two to three days. When dampness prevails, there is no abdominal pain; when heat prevails, there is severe abdominal pain, anal heaviness, and tenesmus. It also states: Dysentery with red residue but no abdominal pain indicates dampness injuring the Blood level, suitable for He Jian's Coptis Decoction (Coptis Rhizome, Angelica Sinensis Root, Licorice Root). I then realized that absence of abdominal pain can also indicate excess-heat, and absence of thirst can be inferred similarly. Since then, for summer-autumn dysentery presenting with no thirst, no abdominal pain, but with tenesmus (tenesmus is universal in dysentery), scanty urination, and rapid pulse, I consistently used He Jian's methods with good results.

White Hibiscus Flower (*Hibiscus mutabilis*) is very effective for red dysentery. I planted several bushes at the Hangzhou Prefecture Academy. In autumn, when flowers bloomed profusely, patients with red dysentery took five or six flowers, roasted on tiles, ground into powder, and mixed with sugar water, resulting in cures. Mr. Chen from Lotus Pond Head suffered from dysentery for a month in autumn; all medicines failed, and his condition became critical, yet he was cured by this prescription. Dried flowers stored for the next year remained effective.

Prescription for Anorexic Dysentery (*Jin Kou Li*): Use Ginseng Root (double dose), Coptis Rhizome processed with Ginger Juice, and Stone Lotus Seed (stir-fried), equal parts of the latter two. Decoct in water and take slowly. This is suitable for Spleen-Stomach Qi deficiency; if heat-toxin is prevalent, adjust accordingly. Hua treated elderly and young patients with dysentery who vomited immediately after eating, using a prescription of white beeswax (one square inch), one egg yolk, honey, vinegar, burnt hair, and Coptis powder (each half an eggshell volume). First decoct honey, wax, vinegar, and egg yolk until uniform, then add Coptis and burnt hair, boil until pill-consistency is reached. Take over two days; miraculously effective. Li Shizhen noted this prescription is highly effective but rarely recorded in medical books, indicating many good prescriptions are lost. Chen's *Zangqi Fu Wei* treats pediatric dysentery with egg and wax decoction, likely derived from this principle, but less ingenious than this prescription. In the eighth month of the Xianfeng 8th year, Luo Jingquan suffered from red dysentery for a month. Other physicians used warming-tonifying herbs, worsening his condition. Upon consultation, he presented fatigue, dizziness, anorexia, mild abdominal pain. Pulse: Right Guan position deep, rapid, and forceful; other pulses deficient. I diagnosed internal stagnation due to premature tonification causing qi constraint. After more than a month, fatigue and dizziness indicated depleted spirit; harsh purgation was contraindicated. I prescribed Charred Rehmannia Root, White Peony Root, Charred Angelica Sinensis Root, Charred Sanguisorba Root, Schizonepeta Spike, Stir-fried Sophora Flower, Charred Moutan Bark, Alcohol-fried Scutellaria Root, Processed Magnolia Bark, Bran-fried Bitter Orange Peel, Hawthorn Fruit, Medicated Leaven, and Two Black Dates. Three doses stopped dysentery and restored appetite; subsequent regulation led to recovery. Commentary: Initially, the absence of abdominal pain and thirst led others to prescribe warming-tonics, simply because they had not read Qin Huangshi's works.