须烧为粉用，兼以麻黄根等分同捣，研为极细末粉。盗汗及阴汗，本方使生者，则自
从本方左顾。经中本不言，只从陶隐居说。其《西阳杂俎》已言∶“牡蛎言牡，非为雄也。
且如牡丹，岂可更有牝丹也？今则合于地，人面向午位，以牡蛎顶向子，视之口，口在左者
为左顾。”此物本无目，如此，焉得更有顾盼也。
自采者真，市中所售者，恐不得尽皆桑中者。《蜀本·图经》浸泡之法，不若略蒸
过为佳。邻家有一男子，小便日数十次，如稠米泔，色亦白，心神恍惚，瘦瘁，食减，以女
劳得之。令服此桑螵蛸散，未终一剂而愈。安神魂，定心志，治健忘、小便数，补心气。桑
螵蛸、远志、菖蒲、龙骨、人参、茯神、当归、龟甲醋炙，以上各一两，为末。夜卧，人参
汤调下二钱。如无桑上者，即用余者，仍须以炙桑白皮佐之，量多少可也。盖桑白皮行水，
意以接螵蛸就肾经。用桑螵蛸之意如此，然治男女虚损，益精，阴痿，梦失精，遗溺，疝瘕
，小便白浊，肾衰，不可阙也。
陈藏器所说是，今海中无雁，岂有食蛤粪出者。若蛤壳中有肉时，尚可食。肉
既无，焉得更有粪中过数多者？必为其皆无廉棱，乃有是说。殊不知风浪日夕淘汰，故如是
。治伤寒汗不溜，搐却手脚，海蛤、川乌头各一两，穿山甲二两，为末，酒糊为丸，大一寸
许，捏扁，置所患足心下，擘葱白盖药，以帛缠定。于暖室中取热水浸脚至膝上，久则水温
，又添热水，候遍身汗出为度。凡一二日一次浸脚，以知为度。
Oyster shell (Muli, 牡蛎) must be calcined into powder. It is also mixed in equal parts with the root of Ephedra (Mahuanggen, 麻黄根), pounded and ground into an extremely fine powder. For spontaneous sweating (Zi Han, 自汗) and nocturnal sweating (Dao Han, 盗汗), as well as sweating in the genital area (Yin Han, 阴汗), this formula advocates using the raw form, adhering to the original intent of the formula. The medical classics do not originally mention this; it follows only the statement of Tao Hongjing (Tao Yinju, 陶隐居). *Xiyang Zazu* already stated: "The term 'male' (Mu, 牡) in Oyster shell does not refer to its masculinity. Just like Peony flower (Mudan, 牡丹), how could there be a 'female peony'? The current practice aligns with Earth energy: the person faces the Wu position (South), with the apex of the Oyster shell pointing to the Zi position (North). Observing its mouth, if the mouth is on the left, it is called 'Left-Gazing' (Zuogu, 左顾)." However, this creature naturally has no eyes; thus, how can it have gazing movements?
Those collected personally are authentic. Those sold in the market may not all be from mulberry trees. The soaking method described in *Shuben Tujing* is inferior to steaming them slightly before use. A neighbor suffered from urinary frequency, urinating dozens of times a day, with urine resembling thick rice wash water, white in color. He experienced mental confusion, emaciation, and loss of appetite, caused by sexual exhaustion. I prescribed Sangpiaoxiao San (Mulberry Mantis Egg Case Powder) for him, and he recovered before finishing one dose. This formula calms the spirit (An Shenhun, 安神魂), stabilizes willpower (Ding Xinzi, 定心志), treats forgetfulness (Jianwang, 健忘) and urinary frequency, and tonifies Heart Qi (Bu Xinqi, 补心气). Ingredients: Mulberry Mantis Egg Case (Sangpiaoxiao, 桑螵蛸), Polygala Root (Yuanzhi, 远志), Acorus Rhizome (Changpu, 菖蒲), Dragon Bone (Longgu, 龙骨), Ginseng (Renshen, 人参), Poria with Hostwood (Fushen, 茯神), Angelica Sinensis Root (Danggui, 当归), and Tortoise Shell (Guijia, 龟甲) stir-fried with vinegar. Each ingredient is used in 1 liang. Grind into powder. At night, take 2 qian with Ginseng decoction. If mulberry-based egg cases are unavailable, others may be used, but roasted Mulberry Root Bark (Sangbaipi, 桑白皮) should still be added as an adjunct, in appropriate proportions. The rationale is that Mulberry Root Bark promotes diuresis, intended to guide the Mantis Egg Case into the Kidney Meridian. Such is the intention behind using Sangpiaoxiao. Nevertheless, for treating deficiency syndromes in men and women, benefiting essence, impotence (Yinwei, 阴痿), seminal emission during dreams (Meng Shijing, 梦失精), enuresis (Yiniao, 遗溺), hernia masses (Shanjia, 疝瘕), turbid white urine (Xiaobai Zhuo, 小便白浊), and Kidney decline, it is indispensable.
Chen Cangqi's statement is correct. Since wild geese do not exist in the sea now, how could they excrete clam feces? Clams are edible only when flesh is present inside the shell. If the flesh is gone, how could there be so much material filtered through feces? This theory likely arose because these clams lack sharp edges. In fact, this is due to the daily washing and erosion by wind and waves. To treat cold damage (Shanghan, 伤寒) with profuse sweating and spasms of the limbs, use Sea Clam (Hai Ge, 海蛤) and Sichuan Aconite Root (Chuan Wutou, 川乌头), each 1 liang, and Pangolin Scales (Chuanshanjia, 穿山甲), 2 liang. Grind into powder, mix with wine paste to make pills about 1 cun in size, flatten them, and place under the sole of the affected foot. Cover the medicine with scallion whites and bind tightly with cloth. Soak the feet in hot water up to the knees in a warm room. As the water cools, add more hot water, until the whole body sweats. Soak feet once every one or two days, stopping when effective.