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Lianshi (Fructus Meliae) inherits the Yin Qi of Heaven and obtains the bitter flavor from Earth; thus, its taste is extremely bitter, its nature is cold, and it has slight toxicity. It enters the Foot-Yangming, Hand-Taiyin, and Foot-Taiyin meridians. Relying on its bitter-cold nature, it can eliminate febrile diseases with high fever and mania, promote diuresis, and kill parasites. It is contraindicated for those with Spleen-Stomach deficiency or cold.

Lianshi is also known as Jinlingzi (Semen Toosendan). After removing the peel and selecting the flesh, it treats febrile diseases and Shanghan (Cold Damage), severe heat with restlessness and mania, regulates hernia pain radiating from the Bladder and Small Intestine, promotes urination through the urinary pathways, and kills "Three Worms" (parasites) and scabies. The root of the Chutree (Toona sinensis) has male and female varieties: Male roots are red, bear no fruit, have great toxicity, and are forbidden for decoction; Female roots are white, bear more fruit, have slight toxicity and can be harvested; those growing towards the East are preferred. When used, remove the green part and retain the white part. Decocted alone in wine and taken during the first half of the lunar month, it greatly kills parasites. If there are many parasites, they form clumps and are expelled downward; skin sores caused by insects are pushed out one by one. When ground and applied externally, it treats itching insect sores.

Note: The bitter-cold nature is suitable for killing parasites, but it is prohibited for those with Spleen-Stomach deficiency-cold.

Chungen Baipi (Cortex Toonae), born from the Yin Qi within the Earth, tastes bitter and astringent, is slightly cold, and has toxicity. It enters the Hand-Yangming and Foot-Yangming meridians. Relying on its bitter-cold nature, when washed externally, it treats sores, scabies, wind-ju (fungal infections), and removes gnawing worms and scabies from the mouth and nose. Furthermore, bitterness dries dampness, cold clears heat, and astringency consolidates; thus, it eliminates all damp-heat in the Stomach and Intestines causing roundworms, metrorrhagia, and dysentery. Its function is identical to that of Chupi (Bark of Chutree). However, Chutree root and leaves are superior. When harvesting, do not use those growing towards the West. After harvesting, store in a cloth bag, dry in a shaded place, remove the coarse bark, and use after honey-frying.

Chugen Baipi (Inner Bark of Chinaberry Tree), which is the inner bark of the Chinaberry tree, treats washing sores, scabies, and wind-ju, removes gnawing worms and scabies from the mouth and nose. It stops excessive menstruation in women, chronic dysentery with leukorrhea, metrorrhagia and uterine bleeding, nocturnal seminal emission and slippery discharge in men, intestinal wind, hemorrhoids, and fistulae; it reduces urine volume and expels roundworms. Chunbaipi (Inner Bark of Chinese Toon), which is the inner bark of the Chinese Toon tree, taking the white part is best. It treats gan accumulation (pediatric malnutrition syndrome), has the same hemostatic effect, and is commonly used in gynecology. It can only be made into pills and powders, not decocted in soups. However, if diarrhea is caused by Spleen-Stomach deficiency-cold, or if metrorrhagia/stagnation is due to True Yin insufficiency, or if dysenteric stagnation and qi retention are not yet exhausted, neither condition should use this herb.

A woman from Luoyang drank excessively without restraint and ate much fish and crab, accumulating toxins in the Zang organs. She had bowel movements twenty to thirty times day and night, passing pus and blood mixed together, with unbearable pain in the Large Intestine extending to the anus. Medications for stopping bloody dysentery were ineffective, and medications for intestinal wind worsened the condition, because intestinal wind presents with blood but no pus. This persisted for half a year, gradually weakening Qi and Blood, reducing appetite, and causing emaciation. Taking hot medicines increased abdominal pain and bleeding; taking cold medicines caused diarrhea and reduced appetite; taking warm-neutral medicines resulted in no improvement. After a full year, her life was hanging by a thread, waiting for death. Someone advised taking Renshen San (Ginseng Powder). After one dose, symptoms improved; after two doses, they decreased; after three doses, pus and blood stabilized. She continued taking it and recovered. This formula treats lower dysentery with heat, where pus, blood, and pain are severe and persist for many days. It uses one liang of Chugen Baipi and one liang of Renshen (Radix Ginseng), ground into powder. Take two qian per dose, mixed with rice water on an empty stomach. Avoid greasy foods, wet noodles, green vegetables, fruits, sweets, chicken, pork, fish, mutton, garlic, and shallots.