一名麻沸汤。又名太和汤。汤须百沸者佳。若半沸者饮之。反伤元气作胀。（汪颖）
气味甘平。助阳气。行经络。患风冷气痹人。以热汤淋脚至膝上。浓覆取汗周身。然别
有药。亦假阳气而行耳。（宗 ）四时暴泄。肢冷腹疼。深汤中坐。浸至腹上。频频作之。
生阳诸药。无速于此。虚寒人始坐汤中必颤。仍常令人伺守之。（又）初感风寒。头痛憎寒
者。用水七碗。烧锅令赤。投水于内。取起再烧再投。如此七次。名沸汤。乘热饮一碗。衣
被覆头。
以新汲水合百沸汤和匀。一名阴阳水。
气味甘咸。凡霍乱及呕吐。不能纳食及药。危甚者。先饮数口即定。凡痰疟。及宿食毒
恶之物胪胀。欲作霍乱者。即以盐投生熟汤中。进一二升。令吐尽痰食。便愈。上焦主纳。
中焦腐化。下焦主出。三焦通利。阴阳调和。升降周流。则脏腑畅达。一失其道。二气淆乱。
浊阴
蒸糯米时。甑篷四边滴下气水。以盘承取用之。
主治小儿诸疳。遍身或面上生疮。烂成孔臼如大人杨梅疮者。取此水扫疮上。数日即效。
百药不效者。用之神妙。
气味咸寒。主治利小便。消热肿。肛门肿痛。欲作痔疮。急取屠刀磨水服。甚效
。盘肠生产。干不上者。以磨刀水少润肠。煎好磁石一杯。温服。自然收上。（扁鹊方）
Also known as Mafei Tang (Boiling Water Decoction). Also named Taihe Tang (Great Harmony Decoction). The decoction must undergo one hundred boils to be considered optimal. If consumed when only half-boiled, it will instead damage the Yuan Qi (Original Qi) and cause abdominal distension. (Wang Ying)
The flavor is sweet and neutral. It assists Yang Qi and promotes circulation through the meridians. For those suffering from Bi syndrome caused by wind-cold-dampness, hot water should be poured over the feet up to the knees, covered tightly to induce sweating throughout the body. However, if other herbs are used, they also rely on Yang Qi to exert their effects. (Zong ) In cases of sudden diarrhea in any season, with cold limbs and abdominal pain, sitting in deep hot water, immersed up to the abdomen, performed frequently, is effective. Among herbs that generate Yang Qi, none acts faster than this. Individuals with deficiency-cold constitutions will inevitably tremble upon first entering the hot water; therefore, someone should always remain nearby to monitor them. (Another source) For initial contraction of wind-cold, presenting with headache and aversion to cold: take seven bowls of water, heat a pot until red-hot, pour the water into it, remove, reheat, and pour again. Repeat this seven times, naming it Fei Tang (Boiling Water). Drink one bowl while hot, covering the head with clothing and blankets.
Mix newly drawn cold water evenly with Hundred-Boil Water. Named Yin-Yang Water (Yin-Yang Shui).
The flavor is sweet and salty. For Huoluan (Cholera-like disorder) and vomiting, where food and medicine cannot be retained, in critical and severe cases, drinking a few mouthfuls initially will stabilize the condition. For Tan-Nue (Phlegm-Malaria) and abdominal distension caused by retained food and toxic foul substances, impending Huoluan: add salt to the mixture of raw and cooked water, administer one to two sheng (a traditional unit of volume), inducing vomiting to expel all phlegm and food, after which recovery occurs. The Upper Jiao (Triple Burner) governs reception; the Middle Jiao governs rotting and transforming; the Lower Jiao governs excretion. When the three Jiaos are unobstructed and patent, Yin and Yang are harmonized, ascending and descending circulate continuously, and the Zang-Fu organs function smoothly. Once this pathway is lost, the two Qi become chaotic, and turbid Yin steams upward.
During the steaming of glutinous rice, the steam-condensed water dripping from the four sides of the steamer lid is collected using a plate for use.
Indicated for various Gan accumulation disorders in children, characterized by sores appearing all over the body or on the face, ulcerating into crater-like lesions resembling the yamen sore (syphilitic chancre) in adults. Apply this water to the sores; effectiveness is seen within a few days. When hundreds of medicines fail, using this method is miraculous.
The flavor is salty and cold. Indicated for promoting urination and reducing heat-induced swelling, anal pain and swelling, and impending hemorrhoids. Urgently take water obtained from grinding butcher knives and ingest it; it is very effective. For prolapse of the rectum during childbirth (Pan Chang Chan Zheng), where the tissue remains dry and does not retract: moisten the intestine slightly with knife-grinding water, decoct one cup of Magnetite (Cishi), and take it warm; it will naturally retract. (Bian Que's Formula)