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Sweet in taste, warm in nature, non-toxic. Primarily treats cough with rebellious qi ascending, brightens the eyes, benefits essence and spirit, calms the five zang organs, unblocks depletion and exhaustion of the lower jiao (lower burner), and strengthens yin. *Yao Xing Lun* states: It has great toxicity. Primarily treats seminal emission, cold cough, strengthens yuan qi (original qi), enhances yang function, and can clear the voice. Ri Hua Zi states: It tonifies five labors and seven injuries. There are three types of calcined gypsum/stalactite: Shi Ru (Stone Milk), Zhu Ru (Bamboo Milk), and Mao Ru (Thatch Milk). They should be taken after refining; unrefined ones may cause lin syndrome (dysuria). *Cnidii Fructus* (Shechuangzi) is used as an guiding herb. Averse to: *Peoniae Radix Rubra* (Mudanpi), Xuanshi, Mumeng. Feared by: Ziyingshi, Suocao. Taboo: Sheep blood. Those with a lustrous appearance are preferred. Origin: Jianghua County, Daozhou; also grows in Mount Shaoshi. Harvested at any time.

Bitter and acrid in taste, cold and greatly cold in nature, non-toxic. Primarily treats hundred diseases, dispels pathogenic cold and heat, drives out accumulations in the six fu organs, resolves solidified masses and fixed stasis, clears heat accumulation of food and drink in the stomach, breaks blood stasis and obstruction, and treats phlegm-fluid retention causing fullness and stuffiness. Ri Hua Zi states: It primarily promotes the drainage of diseases of the five zang organs and hundred ailments as well as nodules, treats epidemic heat diseases, reduces swelling and detoxifies, treats headache, discharges pus, and moistens hair and nails. Zhang Zhongjing's *Shanghan Lun* states: It treats urgency of the bladder, abdominal fullness, jaundice of the whole body, blackening of the forehead, and heat in the soles of the feet. This leads to Hei Dan (Black Jaundice), where stools must be black and the abdomen distended. Another account says: It treats epidemic headache and throat closure (*Hou Bi*). *Shenghui Fang* states: To treat persistent epidemic headache, use two liang powdered, mixed with raw oil, and applied to the vertex. Another prescription: To treat agitation caused by mineral drug activation and various wind-heat patterns. Use half a liang of refined product, finely ground into powder, taken once with honey water, one qian bi per dose, three to four times daily. *Sun Taoren Shiji* states: It primarily treats mouth ulcers; hold it in the mouth for immediate effect. Averse to: Maijujiang. Those that are greenish-white are excellent; yellow ones harm people, and red ones kill people.

Bitter in taste, greatly cold in nature. Primarily treats accumulations in the five zang organs, chronic heat causing gastric closure, dispels pathogenic factors, breaks blood stasis, resolves phlegm-solid masses in the abdomen, unblocks meridians and collaterals, promotes urination and defecation as well as menstruation, breaks five types of lin syndrome, pushes out the old and generates the new, dissolves seventy-two kinds of minerals, reduces swelling and detoxifies, and treats epidemic heat diseases. *Yao Xing Lun* states: When used as an assistant/enhancer, it tastes salty and has slight toxicity. It can unblock amenorrhea and mass formations in women, expel scrofula, jaundice, induce abortion, treat lacquer dermatitis, treat epidemic heat obstruction, and dissipate evil blood. *Shenghui Fang* states: To treat severed fingers, use Mangxiao decoction to wash and soak the injury. *Pteridis Herba* (Shiwei) is used as a guiding herb. Averse to: Maijujiang.