咸甘寒无毒。
发明 珍珠入手足厥阴二经，故能安魂定神，明目退翳。解痘疔毒及痘疮入眼，治耳暴
聋，出水研细末吹之，待其干脱自愈。 灰入长肉药，及汤火伤敷之最妙。然不可着水，着
水则反烂肉。
一名珍珠母
咸平无毒，九孔者佳。面裹煨熟，水飞用。反云母。
发明 石决明味咸，软坚，入肝肾二经，为磨翳消障之专药。又治风热入肝，烦扰不寐
，游魂无定。《本事方》珍珠母丸与龙齿同用，取散肝经之积热，须与养血药同用。不宜久
服，令人寒中，非其性寒，乃消乏过当耳。
咸平微寒无毒。即蛤蜊之壳浓口，光有紫斑文者。用醋浆水或醋煮半日许，捣粉
用。
《本经》主恶疮，蚀五痔。
发明 文蛤咸寒，走足少阴经，为润下之味，故能止渴，利小便。《别录》治咳逆胸痹
，腰痛胁急，鼠 崩中，即《本经》主恶疮蚀五痔之义，取咸能软坚入血分也。仲景伤寒太
阳病用水却益烦，意欲饮水反不渴者及《金匮》渴欲饮水不止，并用文蛤散，其治反胃吐后
渴欲饮水而贪饮者，则有文蛤汤，总取咸寒涤饮之义。
咸寒无毒。紫口者良。
发明 大都咸寒之物皆能清热、开胃、止渴。其壳 赤，杵粉，能清肺热，滋肾燥，降
痰清火，止咳定喘，消坚癖，散瘿瘤，无不宜之。炒阿胶、鳔胶用之，以其味咸能发滞性也
。单方治乳痈，每三钱入皂角刺末半钱，温酒调服。治肺痈，一味童便 研，甘桔汤日进三
服屡验。然须冬时取栝蒌实和穣子同捣仍入壳中，悬当风处阴干，以供一岁之用，否则难于
取应也。
Background Information:
Book: Benjing Fengyuan (Supplement to the Materia Medica)
Author: Zhang Lu
Dynasty: Qing
Chapter: Zhenzhu (Pearl) / ... / Geli (Clam Shell) (Total 4 sections)
Category: Comprehensive
[Text]
Salty, sweet, cold, non-toxic.
Invention: Pearl enters the Jueyin meridians of the foot and hand; therefore, it can calm the soul, stabilize the spirit, brighten the eyes, and remove nebulae. It resolves the toxicity of smallpox boils and carbuncles, as well as smallpox lesions entering the eyes. For treating sudden deafness, grind into a fine powder with water, insufflate into the ear, and allow it to dry and fall off naturally for self-healing. When calcined into ash and added to flesh-regenerating medicines, or applied externally for scalds and burns, it is most excellent. However, it must not come into contact with water; if it does, it will instead rot the flesh.
Also known as Mother-of-Pearl (Zhenzhumu)
Salty, neutral, non-toxic. Those with nine holes are superior. Wrap in dough and roast until cooked, then use after levigation with water. It is incompatible with Yunmu (Mica).
Invention: Concha Heterotrigoniae (Shijueming) has a salty taste and softens hardness. It enters the Liver and Kidney meridians and is a specific medicine for grinding away nebulae and eliminating visual obstructions. It also treats wind-heat invading the Liver, causing restlessness, insomnia, and unsettled spirit (Wang Hun). In the *Ben Shi Fang* (Formulas of Ability), Zhenzhumu Wan (Mother-of-Pearl Pill) is used together with Longchi (Dragon Tooth) to dissipate accumulated heat in the Liver meridian; it must be used with blood-nourishing herbs. It should not be taken for a long time, as it causes coldness in the middle jiao; this is not due to its inherent cold nature, but rather because excessive consumption depletes vital energy.
Salty, neutral, slightly cold, non-toxic. This refers to the shell of the clam with thick lips, smooth surface, and purple mottled patterns. Boil for about half a day in vinegar grain water or vinegar, crush into powder, and use.
The *Shennong Benjing Jing* states it primarily treats malignant sores and corrodes the five types of hemorrhoids.
Invention: Wenhe (Clam Shell) is salty and cold, travels to the Shaoyin meridian of the foot. As a moistening and downward-draining substance, it can quench thirst and promote urination. The *Bielu* states it treats coughing, reverse qi, chest bi syndrome, lower back pain, hypochondriac stiffness, rat abscesses, and metrorrhagia. This aligns with the meaning in the *Benjing Jing* regarding treating malignant sores and corroding hemorrhoids, utilizing the property that saltiness softens hardness and enters the blood level. Zhang Zhongjing, in his treatment of Taiyang disease in *Shanghan Lun*, when water retention leads to increased irritability and a desire to drink yet no actual thirst, and in the *Jingui Yaolue* for cases of unquenchable thirst, both utilize Wenhe San (Clam Shell Powder). For treating vomiting followed by a desire to drink greedily, he uses Wenhe Tang (Clam Shell Decoction). All these applications rely on the principle of using salty-cold substances to purge fluid retention.
Salty, cold, non-toxic. Those with purple mouths are good.
Invention: Generally, salty-cold substances can clear heat, stimulate appetite, and quench thirst. Its shell is reddish; when pounded into powder, it can clear Lung heat, nourish Kidney dryness, descend phlegm, clear fire, stop cough, calm wheezing, dissolve hard accumulations, and dissipate goiters and tumors, making it suitable for all these conditions. It is used in stir-frying Ejiao (Donkey-hide Gelatin) and Biaojiao (Fish Maw Gelatin) because its salty taste can activate stagnant properties. A simple prescription for treating breast abscesses (Ruyong) mixes three qian of this powder with half a qian of Gleditsia sinensis thorn powder, taken with warm wine. To treat lung abscesses (Feiyong), grind alone with urine from an uncircumcised boy, and take three doses daily with Ganjie Tang (Licorice and Platycodon Decoction); this has proven effective repeatedly. However, one must harvest the fruit of Trichosanthes kirilowii (Gualou) in winter, mash it together with the pulp and seeds, return it to the shell, hang it in a ventilated place to dry in the shade, to provide for a year's use; otherwise, it may be difficult to achieve the desired effect.