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Shiwei (Pyrrosiae Folium) is its guiding herb. It is incompatible with Cengqing (Azurite). It can be processed with Xionghuang (Realgar).

[Shihui / Talcum]
Sweet, bland, cold, and slippery in nature. Enters the Foot-Taiyang (Bladder) and Foot-Yangming (Stomach) meridians. It opens the pores of the skin and interstices, clears the source of water-dampness, and eliminates damp-heat from the Triple Burner. It treats vomiting and epistaxis due to accumulated heat, restlessness and thirst due to heatstroke, vomiting, diarrhea, and dysentery, stranguria, urinary retention, difficult lactation, edema, and beriberi, as well as various sores, ulcers, and toxic swellings. Taken down with scallion decoction, it treats "Zhuan Pao" (bladder inversion/urinary retention) in women (caused by forcibly holding urine). Combined with Huoxiang (Agastaches Herba) and Dingxiang (Caryophylli Flos), it treats vomiting and diarrhea due to latent summerheat. Paired with Kubai Fan (Alumen Exsiccatum) and Shigao (Gypsum Fibrosum), applied externally to sweaty genital areas, and also treats maceration between toes. Mixed with Cheqian juice (Plantaginis Semen Juice) and applied to the umbilicus, it treats urinary obstruction.

Preparation: Scrape the surface clean with a knife, grind into powder, boil together with Danpi (Moutan Cortex), remove Danpi, wash with flowing water from the east, and dry in the sun for use. Contraindicated in cases of dry-heat causing seminal emission, pregnant women, and patients suffering from diseases requiring diaphoresis (sweating therapy).

Strange syndrome: Red eyes, swollen nose, severe panting, generalized eruption of spots, hair stiff like iron; this is heat-toxin congealing in the Lower Jiao. Use Shihui (Talcum) and Baifan (Alumen) each one liang (approx. 30g), decoct and drink, continuing to drink without stopping.

Chishizhi / Halloysitum Rubrum
It fears Yuanhua (Genkwa Flos) and Chi Zhi (Fermented Sojae Semen Praeparatum juice). It is incompatible with Dahuang (Rhei Radix et Rhizoma) and Songzhi (Pinus Resin).

Sweet, sour, warm, and astringent in nature. Enters the Hand-Shaoyin (Heart) and Foot-Yangming (Stomach) meridians. It thickens the intestines and stomach, and removes water-dampness. It retracts prolapsed rectum, stops metrorrhagia and leukorrhea, expels retained fetus, nourishes heart blood, and generates flesh (muscle tissue) (because it aids fire to generate earth, thus promoting muscle growth). Paired with Ganjiang (Zingiberis Rhizoma) and Hujiao (Piperis Longi Fructus), made into pills with vinegar paste, it treats cold-slippery large intestine, and involuntary urination or seminal emission. Paired with Ganjiang (Zingiberis Rhizoma) and Jingmi (Oryza Sativa Germen), it treats chronic dysentery with pus and blood (because it directly enters the Lower Jiao, it is an essential herb for chronic dysentery). Paired with Po Guzhi (Psoraleae Fructus), it treats menorrhagia. Paired with Fulonggan (Sedimentum Fornacis) ground into powder, applied externally to treat rectal prolapse. Paired with Muli (Concha Ostreae) and Yan (Sal), made into pills with vinegar paste, it treats urinary incontinence. Assisted by Chuanjiao (Zanthoxyli Pericarpium) and Fuzi (Aconiti Lateralis Radix Praeparata), it treats heart pain radiating to the back. Ground into powder and applied to the umbilicus, it stops sweating.

Red Chishizhi enters the Blood level, White Chishizhi enters the Qi level; the variety that adheres to the tongue is of good quality. Quench in vinegar, grind, and use the water-insoluble fine powder obtained by sedimentation (Shuifei). Not suitable for non-cold dysentery or white-dysentery; contraindicated in early-stage damp-heat conditions.