姚氏，中水毒秘方。
取水萍曝干，以酒服方寸匕，瘥止。又云，中水病，手足指冷，即是。若暖非也，其冷
或一寸，极或竟指，未过肘膝一寸浅，至于肘膝为剧。
葛氏，水毒中人，一名中溪，一名中洒，一名水病。似射工而无物，其诊法。
初得之恶寒，头微痛，目注疼，心中烦懊，四肢振淅，骨节皆强。筋急，但欲睡，旦醒
，暮剧。手逆冷，三日则复生虫食下疮，不痛不痒不冷。人觉视之乃知，不即疗。过六七日
下部脓溃，虫食五脏，热极烦毒。注下不禁，八九日，良医不能疗，觉得急，当深视下部。
若有疮，正赤如截肉者为阳毒，最急。若疮如蠡鱼齿者为阴毒，犹小缓，要皆煞人。不过二
十日，欲知是中水毒，当作数升汤，以小蒜五寸。 咀投汤中，莫令大热。热即无力，捩去
滓，适寒温以浴。若身体发亦斑纹者，又无异证，当以他病疗之也。
病中水毒方。
取梅若桃叶，捣，绞汁三升许，以少水解为饮之。姚云，小儿不能饮，以汁敷乳头，与
之。
又方，常思草，捣绞，饮汁一二升，并以绵染寸中，以导下部，日三过，即瘥。
又方，捣蓝青汁，以少水和涂之。头面身体，令匝。
又方，取梨叶一把，熟捣，以酒一杯和绞，服之，不过三。
又方，取蛇莓草根，捣作末，服之。并以导下部，亦可饮汁一二升，夏月常行。欲入水
浴，先以少末投水中流，更无所畏。又辟射工家中，虽以器贮水浴，亦宜少末，投水中，大
佳。
今东闲诸山县，无不病溪毒，春月皆得。亦如伤寒，呼为溪温，未必是射工辈，亦尽患
疮痢，但寒热烦疼不解，便致死耳，方家用药与伤寒温疾相似，令施其单法。
五加根烧末，酒若浆水饮之。荆叶汁，佳，千金不传秘之。
又方，密取蓼捣汁，饮一二合，又以涂身令周匝。
取牛膝茎一把，水酒共一杯，渍。绞取汁饮之，日三。雄牛膝，茎紫色者是也。
若下部生疮，已决洞者。
秫米一升，盐五升，水一石，煮作糜，坐中，即瘥。
又方，桃皮叶，熟捣水渍令浓，去滓。着盆中坐渍之，有虫出。
又方，皂荚烧末，绵裹导之，亦佳。又服牡丹方寸匕，日三服。
姚氏治疗水毒的秘方。
采集浮萍，晒干后，用酒送服一方寸匕的量，病愈即停。又说，患水毒症时，手足指头发冷，就是此症。如果手脚温暖则不是。手指发冷的程度，轻者一寸，重者直至指尖，但未超过肘膝一寸为浅症，若达到肘膝则为重症。
葛氏认为，水毒中人，又称中溪、中洒或水病。这种病类似射工（一种水中毒虫）但无实体。其诊断方法如下：
初起时恶寒，头部微痛，眼睛注视时疼痛，心中烦闷懊恼，四肢颤抖，骨节僵硬。筋脉拘急，只想睡觉，早晨清醒，傍晚病情加重。手部逆冷，三天后下部生疮，被虫侵蚀，不痛不痒也不冷。人察觉并看到后才知晓，若不立即治疗。过了六七天，下部化脓溃烂，虫蚀五脏，热极且烦毒。腹泻不止，到了第八九天，即使良医也难以救治。觉得病情紧急时，应当仔细查看下部。如果有疮口，颜色正红如截断的肉块的是阳毒，最为危急。如果疮口像蠡鱼牙齿形状的是阴毒，稍缓一些，但都足以致死。不超过二十天。想要确认是否是中水毒，应煮几升汤，放入五寸长的小蒜。切碎投入汤中，不要让汤太热。太热则药效减弱。拧去渣滓，待温度适宜时洗浴。如果身体出现斑纹，又没有其他症状，应按其他疾病治疗。
治疗中水毒的方剂。
取梅叶或桃叶，捣碎，绞取汁液约三升，加少量水稀释后饮用。姚氏说，小儿不能饮用，可将汁液涂抹在乳头上，让婴儿吸吮。
另一个方子，取常思草，捣碎绞汁，饮用一二升，并用棉条蘸取药汁塞入下部，每天三次，即可痊愈。
又一个方子，捣取蓝青汁，加少量水和匀后涂抹全身，包括头面身体，使其覆盖周全。
又一个方子，取一把梨叶，熟捣后，用一杯酒调和绞汁，服用，不超过三次。
又一个方子，取蛇莓草根，捣成粉末，服用。也可将药粉塞入下部，或者饮用汁液一二升，夏季经常使用。想要下水洗澡前，先将少量药粉投入流动的水中，就无需畏惧。也能预防射工伤害家中，即使是用容器贮水洗澡，也宜将少量药粉投入水中，效果很好。
如今东闲各山县，无不患有溪毒，春季都会得病。也像伤寒一样，称为溪温，未必是射工之类所致，但也尽皆患疮痢，只是寒热烦疼不解，便致死罢了。方家用药与伤寒温疾相似，令施行其单方。
五加根烧成粉末，用酒或浆水送服。荆叶汁更好，千金方不传此秘法，需保密。
又一个方子，秘密采集蓼草捣汁，饮用一二合，又将其涂抹全身，使其覆盖周全。
取牛膝茎一把，与水酒共一杯浸泡。绞取汁液饮用，每天三次。雄性的牛膝，茎呈紫色的是正品。
如果下部生疮，已经溃烂穿孔的。
秫米一升，盐五升，水一石，煮成粥，坐于其中，即可痊愈。
又一个方子，桃树皮和叶，熟捣后用水浸泡至浓稠，去渣。倒入盆中坐渍，有虫出来。
Miao’s Secret Formula for Treating Water Poisoning.
Harvest duckweed (Spirodela polyrhiza), dry it in the sun, and administer one *cun* cube (a traditional measure of volume) with wine. Discontinue when cured. It is also said that in water poisoning, coldness of the fingers and toes indicates this condition. If warm, it is not this disease. The coldness may extend one *cun* or reach the fingertips; if it does not exceed one *cun* past the elbows or knees, it is a mild case; reaching the elbows or knees indicates a severe case.
Ge’s view: Water poisoning affecting humans is also called "Zhong Xi" (Stream Poisoning), "Zhong Sa", or "Water Disease". It resembles the "She Gong" (an aquatic toxic insect) but has no physical form. Its diagnostic method is as follows:
Initially, there is aversion to cold, slight headache, pain upon focusing vision, mental restlessness and oppression, trembling of the four limbs, and stiffness of bone joints. The sinews are tense, there is a desire to sleep, clarity in the morning worsens in the evening. The hands become cold. After three days, sores appear on the lower body, eaten by insects, without pain, itching, or coldness. One realizes this only upon seeing them; if not treated immediately, after six or seven days, the lower part becomes purulent and ulcerated, insects devour the five Zang organs, leading to extreme heat, vexation, and toxicity. Uncontrollable diarrhea occurs. By the eighth or ninth day, even excellent physicians cannot cure it. When feeling urgent, one must carefully examine the lower body. If there are sores, those red like cut meat indicate Yang Du (Yang Toxin), which is most critical. Those resembling the teeth of a conch fish indicate Yin Du (Yin Toxin), which is slightly less urgent but still fatal. Within twenty days. To confirm if it is water poisoning, boil several sheng (a unit of volume) of water, add five cun of small garlic. Crush and throw into the water; do not let it be too hot, as heat reduces efficacy. Squeeze out the dregs, and bathe when the temperature is suitable. If the body develops spots or patterns, and there are no other symptoms, treat it as another disease.
Formulas for Treating Water Poisoning.
Take plum leaves or peach leaves, crush them, and squeeze out about three sheng of juice. Dilute with a little water and drink. Miao says, if children cannot drink it, apply the juice to the nipple for them to suck.
Another formula: Take Chang Si Cao (Plantain, *Plantago asiatica*), crush and squeeze out the juice, drink one or two sheng. Also soak cotton in the juice and insert it into the lower orifice, three times a day, until cured.
Another formula: Crush Indigofera tinctoria (Lan Qing, 蓝靛) to extract juice, mix with a little water, and apply to the entire body, including head and face, ensuring full coverage.
Another formula: Take a handful of pear leaves, crush thoroughly, mix with one cup of wine, squeeze out the juice, and drink. No more than three doses.
Another formula: Take roots and rhizomes of Duchesnea indica (Snake Berry Root, 蛇莓草根), crush into powder, and take orally. Also insert into the lower orifice, or drink one to two sheng of juice. Use regularly in summer. Before bathing in water, throw a small amount of powder into the flowing water to ward off fear. It also repels She Gong at home; even when bathing in stored water, adding a small amount of powder is highly recommended.
In the counties of Dongxian, stream poisoning is ubiquitous, occurring in spring. Like Shang Han (Cold Damage), it is called "Xi Wen" (Stream Fever). It is not necessarily caused by She Gong, but patients suffer from sores and dysentery. If chills, fever, vexation, and pain persist unresolved, death ensues. Physicians use medicines similar to those for Shang Han and Wen Ji (Warm Diseases), applying single prescriptions.
Burn roots of Eleutherococcus senticosus (Wu Jia Gen, 五加皮) into powder, drink with wine or fermented rice liquid. Juice of Elsholtzia splendens (Jing Ye, 荆芥叶) is better; kept secret by Qian Jin Fang.
Another formula: Secretly collect Polygonum hydropiper (Liao, 蓼), crush and squeeze juice, drink one or two he (a small unit), and apply to the whole body for full coverage.
Take a handful of stems of Achyranthes bidentata (Niu Xi, 牛膝), soak in one cup of water and wine mixture. Squeeze out the juice and drink, three times a day. Male Niu Xi with purple stems is authentic.
If sores appear on the lower body and have already ulcerated/perforated:
Cook one sheng of broomcorn millet (Shu Mi, 秫米) and five sheng of salt in one dan (a large unit) of water until porridge-like. Sit in it until cured.
Another formula: Take peach bark and leaves, crush thoroughly, soak in water until thick, strain. Pour into a basin and sit in it; insects will emerge.
Another formula: Burn Gleditsia sinensis (Zao Jia, 皂荚) into powder, wrap in cotton, and insert into the lower orifice; this is also good. Additionally, take one *cun* cube of Paeonia suffruticosa (Mu Dan Pi, 牡丹皮) powder, three times a day.