（《拾遗》）
【气味】无毒。
【主治】蛊毒，服一盏。又疗蛇咬疮，浸之效（藏器）。
（《拾遗》）
【气味】无毒。
【主治】止消渴，重者服一小盏，勿令知之，三度瘥（藏器）。
（《纲目》）
【主治】病后劳复，或因梳头，或食物复发，取一合饮之，效（《圣惠》）。
（《纲目》）
【主治】胎衣不下，服一盏，勿令知之（《延年秘录》）。
（《拾遗》）
水府龙宫，不可触犯。藏器曰∶水之怪魍魉，温峤然犀照水，为神所怒是也。
水中有赤脉，不可断之。井水沸溢，不可饮。时珍曰∶但于三十步内取青石一块投之，
即止。
古井眢井不可入，有毒杀人。时珍曰∶夏月阴气在下，尤忌之。但以鸡毛投之，盘旋而
舞不下者，必有毒也。以热醋数斗投之，则可入矣。古冢亦然。
古井不可塞，令人盲聋。
阴地流泉有毒，二、八月行人饮之，成瘴疟，损脚力。
泽中停水，五、六月有鱼鳖精，人饮之，成瘕病。
沙河中水，饮之，令人喑。
两山夹水，其人多瘿。
流水有声，其人多瘿。
花瓶水，饮之杀人。腊梅尤甚。
炊汤洗面，令人无颜色；洗体，令人成癣；洗脚，令人疼痛生疮。
铜器上汗入食中，令人生疽，发恶疮。
冷水沐头，热泔沐头，并成头风，女人尤忌之。
水经宿，面上有五色者，有毒，不可洗手。
时病后浴冷水，损心胞。盛暑浴冷水，成伤寒。
汗后入冷水，成骨痹。时珍曰∶顾闵远行，汗后渡水，遂成骨痹痿蹶，数年而死也。
产后洗浴，成痉风，多死。
酒中饮冷水，成手颤。
酒后饮茶水，成酒癖。
饮水便睡，成水癖。小儿就瓢及瓶饮水，令语讷。
夏月远行，勿以冷水濯足。
冬月远行，勿以热汤濯足。
(From *Bencao Shiyi* [Supplement to Materia Medica])
[Odor and Taste] Non-toxic.
[Indications] Gu poison (a type of parasitic or toxic disease), take one cup. Also treats snakebite sores; soaking the affected area is effective (Zang Qi).
(From *Bencao Shiyi* [Supplement to Materia Medica])
[Odor and Taste] Non-toxic.
[Indications] Stops xiao ke (wasting-thirst syndrome); for severe cases, take a small cup, do not let the patient know it is medicine; three doses will cure (Zang Qi).
(From *Bencao Gangmu* [Compendium of Materia Medica])
[Indications] Laofu (relapse due to overexertion after illness), or relapse caused by combing hair or improper diet; take one he (a unit of volume) to drink, effective (*Taiping Shenghui Fang*).
(From *Bencao Gangmu* [Compendium of Materia Medica])
[Indications] Retained placenta; take one cup, do not let the patient know (*Yannian Milu*).
(From *Bencao Shiyi* [Supplement to Materia Medica])
The Dragon Palace of water cannot be offended. Zang Qi said: The monsters in water are wangliang; when Wen Qiao lit a rhino horn to illuminate the water, he was angered by the spirits, which is what happened.
Red veins in water must not be cut off. Well water that boils and overflows must not be drunk. Li Shizhen said: Just throw a piece of bluestone within thirty paces into it, and it will stop.
Ancient wells and dry wells must not be entered; they contain toxic gas that kills people. Li Shizhen said: In summer, yin qi is below, which is especially taboo. Just throw chicken feathers in; if they swirl and dance without sinking, there must be poison. Pour several dou (a unit of volume) of hot vinegar in, and one can enter. Ancient tombs are the same.
Ancient wells must not be blocked, as this causes blindness and deafness.
Spring water in shady places is toxic; drinking it in the second and eighth months causes zhang nue (malaria-like fevers) and impairs leg strength.
Stagnant water in marshes contains fish and turtle essences in the fifth and sixth months; drinking it causes jia bing (abdominal masses).
Water from sandy rivers causes aphonia (loss of voice) when drunk.
People living between two mountains often suffer from ying (goiter).
People near flowing water with sound often suffer from ying (goiter).
Water in flower vases is fatal if drunk; water containing winter plum blossoms is particularly deadly.
Using rice-washing water to wash the face causes loss of complexion; washing the body causes tinea (ringworm); washing the feet causes pain and sores.
Sweat from copper vessels entering food causes ju (carbuncles) and malignant sores.
Washing the head with cold water or hot rice-water both cause toufeng (head wind/headache); women should especially avoid this.
Overnight water with five-colored sheen on the surface is toxic and must not be used to wash hands.
Bathing in cold water after an epidemic disease damages xinbaoluo (pericardium collateral); bathing in cold water during intense heat causes shanghan (cold damage syndrome).
Entering cold water after sweating causes gu bi (bone bi/painful obstruction); Li Shizhen said: Gu Min traveled far, crossed water after sweating, and thus developed gu bi and wei jue (flaccidity and paralysis), dying years later.
Bathing after childbirth causes jing feng (spasm and wind), often leading to death.
Drinking cold water mixed with alcohol causes hand tremors.
Drinking tea after drinking alcohol causes jiu pi (alcohol fixation/accumulation).
Drinking water and then sleeping immediately causes shui pi (water accumulation); children drinking directly from gourd ladles or bottles cause speech retardation.
In summer, do not wash feet with cold water while traveling long distances.
In winter, do not wash feet with hot water while traveling long distances.