无毒
潦水主煎调脾胃去湿热之药（本草纲目）【名】（李时珍云）降注雨水谓之潦又淫雨为潦
（韩
退之诗云）潢潦无根源朝灌夕已除是矣【地】（国风云）于彼行潦（大雅云） 酌彼行潦（左
传云）
潢污行潦之水是其地也【用】（大雅云）挹彼注兹可以 （左传云）可荐于鬼神可馐于王
公是
其用也【味】甘【性】平【治】（成无己云）张仲景治伤寒瘀热在里身上发黄必用潦水煎麻
黄
连轺赤小豆汤取其味薄而不助湿气利热也
无毒
神水主心腹积聚及虫病和獭肝为丸服（本草纲目）【名】端午雨水【地】藏在竹竿中者
【时】
（生）于五月五日午时（采）于午时内取之【收】（金门记云）五月五日午时有雨急伐竹竿
中必有
神水即收之【用】沥取为药【味】甘【性】寒【治】（李时珍云）得饮神水能清热化痰定惊
安
神此雨罕逢惜乎不易得耳
无毒
陈井水主下膈疏痰止吐（本草纲目）【地】（李时珍云）阿井在今兖州阳谷县即古东阿县
也
【用】（沈括笔谈云）古说济水伏流地中今历下凡发地下皆是流水东阿亦济水所经取井水煮
胶
谓之阿胶又青州范公泉亦济水所注其水用造白丸子利膈化痰【质】其性趣下清而且重用搅浊
水则清【色】（管子云）齐之水其泉清白其人坚劲寡有疥瘙终无消酲水性之不同如此【味】
甘
咸【性】平【治】乌井水性重故能治瘀浊及逆上之痰【赝】（李时珍云）陆羽烹茶尚辨天下
之
水性美恶烹药者反不知辨此岂不误哉
无毒。
潦水主要用于煎煮调理脾胃、去除湿热的药物（《本草纲目》）。【名称】（李时珍说）从高处降下的雨水称为潦，连绵不断的阴雨也称为潦。（韩愈的诗中说）“沟渠中的积水没有根源，早晨注入傍晚就干涸了”，说的就是这个道理。【产地】（《诗经·小雅》中说）在那里的路边积水（《诗经·大雅》中说）舀取那里的路边积水（《左传》中说）池塘里的积水和路边的积水，这就是它的产地。【用途】（《诗经·大雅》中说）舀取这里的倒入那里（《左传》中说）可以用来祭祀鬼神，可以作为王公贵族的食品，这就是它的用途。【味道】甘。【性质】平。【主治】（成无己说）张仲景治疗伤寒导致瘀热在体内、身上发黄的病症，必须用潦水煎煮麻黄连轺赤小豆汤，取其味道淡薄而不助长湿气、利于清热的作用。
无毒。
神水主要用于治疗心腹部的积聚以及寄生虫病，与獭肝制成丸药服用（《本草纲目》）。【名称】端午节的雨水。【产地】藏在竹竿中的雨水。【时间】（产生）于五月五日午时（采集）在午时内从中取出。【收藏】（《金门记》中说）五月五日午时有雨时，急忙砍伐竹竿，其中必定有神水，立即收取。【用途】滴取作为药物。【味道】甘。【性质】寒。【主治】（李时珍说）饮用神水能够清热化痰、定惊安神。这种雨水很少遇到，可惜不容易得到。
无毒。
陈井水主要用于下膈、疏通痰饮、止吐（《本草纲目》）。【产地】（李时珍说）阿井在今兖州阳谷县，即古代的东阿县。【用途】（沈括《笔谈》中说）古书记载济水在地底下伏流，现在历下凡是挖掘地下都是流水，东阿也是济水流经的地方，取井水煮胶，称为阿胶。还有青州的范公泉也是济水注入的水源，用水制作白丸子，能利膈化痰。【质地】其性质趋向下行，清澈而沉重，用力搅动浑浊的水则变清。【颜色】（《管子》中说）齐地的水，泉水清白，当地的人身体坚劲，少有疥疮瘙痒，终无消渴和醉酒之病，水的性质不同如此。【味道】甘、咸。【性质】平。【主治】乌井水性重，所以能治疗瘀浊以及逆上的痰饮。【伪品】（李时珍说）陆羽烹茶尚且辨别天下水性的优劣，煎药的人反而不知道辨别，这难道不是错误吗？
Non-toxic.
Lao Shui (Rainwater collected from flowing surface runoff) is mainly used to decoct medicines that regulate the Spleen and Stomach and eliminate damp-heat (*Bencao Gangmu*). [Name] (Li Shizhen states) Rainwater descending from high places is called Lao; continuous heavy rain is also called Lao. (Han Yu's poem says) "Puddles in the ditches have no source, poured in the morning, removed by evening," which is correct. [Origin] (The *Book of Songs · Xiao Ya* says) "There, the running puddles" (The *Book of Songs · Da Ya* says) "Scoop from those running puddles" (The *Zuo Zhuan* says) "Stagnant water and running puddles," this is its origin. [Usage] (The *Book of Songs · Da Ya* says) "Scoop from here and pour into there" (The *Zuo Zhuan* says) "Can be offered to ghosts and spirits, can be served as food for kings and nobles," this is its usage. [Taste] Sweet. [Nature] Neutral. [Indications] (Cheng Wuji states) Zhang Zhongjing treats Shaoyang disease (Taiyang disease transforming into heat) with stasis-heat in the interior causing yellowing of the body, must use Lao Shui to decoct Mahuang Lianyao Chixiaodou Tang (Ephedra, Cistanche Seed, and Red Bean Decoction), taking advantage of its thin taste not to assist dampness and to promote heat elimination.
Non-toxic.
Shen Shui (Divine Water) is mainly used to treat accumulations and masses in the heart and abdomen, as well as parasitic diseases, combined with Tan Gan (Liver of the Chinese Water Otter) to make pills for ingestion (*Bencao Gangmu*). [Name] Rainwater collected on the Dragon Boat Festival (Duanwu Festival). [Origin] Rainwater stored inside bamboo stalks. [Time] (Generated) at noon on the fifth day of the fifth lunar month. (Harvested) extracted from within during the noon hour. [Storage] (The *Jinmen Ji* says) When it rains at noon on the fifth day of the fifth lunar month, quickly cut down the bamboo stalks; they must contain Shen Shui, collect it immediately. [Usage] Drip and extract for medicinal use. [Taste] Sweet. [Nature] Cold. [Indications] (Li Shizhen says) Drinking Shen Shui can clear heat, resolve phlegm, calm fright, and tranquilize the spirit. This kind of rain is rare, alas, difficult to obtain.
Non-toxic.
Chen Jing Shui (Aged Well Water) is mainly used to descend turbidity below the diaphragm, unblock phlegm, and stop vomiting (*Bencao Gangmu*). [Origin] (Li Shizhen says) A Jing (Well) is located in Yanggu County, Yanzhou Prefecture today, which was ancient Dong'e County. [Usage] (Shen Kuo's *Brush Talks* says) Ancient texts state that the Ji River flows underground as a subterranean stream; now in Lixia, whatever is dug underground reveals flowing water. Dong'e is also where the Ji River passes; taking well water to boil glue is called Ejiao (Donkey-hide Gelatin). Also, the Fangong Spring in Qingzhou is fed by the Ji River; using this water to make Bai Wanzi (White Pills) benefits the diaphragm and resolves phlegm. [Quality] Its nature tends downward, clear and heavy; stirring turbid water vigorously makes it clear. [Color] (The *Guanzi* says) The water of Qi is clear and white; its people are robust and strong, rarely suffering from scabies or itching, and never suffering from Xiao Ke (Wasting-thirst) or drunkenness. Thus, the differences in water nature are such. [Taste] Sweet, Salty. [Nature] Neutral. [Indications] Wu Jing Shui (Water from Wu Well) has a heavy nature, thus it can treat stasis-turbidity and rebellious phlegm. [Counterfeits] (Li Shizhen says) Lu Yu, when brewing tea, still distinguished the merits and demerits of water sources across the world; why do those decocting medicine fail to distinguish them? Would this not be a mistake?