人有时值夏令，便觉身体昏倦，四肢无力，朝朝思睡，全无精神，脚酸腿软，人以为疰
夏之病，谁知肾水之亏乏乎。夫夏令火炎，全藉肾水之润，则五脏六腑得以灌注，不至有干
燥之患。然而夏日正当水衰，人之肾水，未有全旺者也。凡人至夏，虽多困倦，但未若疰
夏之甚。疰夏者，肾水亏乏，乃冬不藏精之故也。精不藏于冬，火难盛于夏，故困乏矣。虽
然夏令火胜，多伤脾胃，人之困乏，自是脾胃之气衰弱故也。与肾水似乎无涉，讵知肾中无
水，不能分润于脾胃，则脾胃水干，何能制外火之旺乎。火无水制，脾胃受火之刑，则脾
胃无津，仅可自顾，势难转输于手足，四肢无力，精神倦怠，亦其宜也。治法必须健脾开胃
为主。脾健胃开，则所用饮食，自然变化精微，以生肾水，又得补肾之药，以蒸动脾肾之
气，则水土不相克而相生，何虑疰夏之病哉。方用胜夏丹∶
白术（二钱） 茯苓（二钱） 陈皮（三分） 人参（五分） 北五味子（三分） 熟
地（五钱） 山茱萸（二钱） 神曲（三分） 白芥子（一钱） 山药（三钱） 芡实（
三钱） 炒枣仁（一钱）水煎服。每日一剂，服十剂，精神焕发矣。再服十剂，身体健旺。
此方视之，若平平无奇，而轻重多寡，配合入妙，既无阳胜之虞，又无阴衰之弊，醒脾胃
之气，生心肾之津，可久饵以取效，亦可近服以图功也。
此症用鼓神汤亦效。
熟地 麦冬（各五钱） 白芍 地骨皮 沙参（各二钱） 甘草 贝母（各三分） 人参
神曲（各五分） 白术（三钱） 丹皮（一钱）水煎服。日服一剂，服一月，精神自旺，不
困倦矣。
人有三伏之时，悠悠忽忽，懒用饮馔，气力全无，少贪美味，腹中闷胀，少遇风凉，大便
作泻，人以为疰夏之病，谁知脾气之困乏乎。夫人之先天乃肾，后天乃脾也。脾气健，则所
用饮食自化精微，足以供肾水之不足。苟或春冬之际，先伤脾土，则土衰难以化物，所用饮
食势必停住于胃中，肾水无脾土之资生，则肾气更涸，何能分布于筋骨，此精神气力之倦乏
也。似乎治法宜急补其脾矣，然脾土非肾火不生，肾火非肾水不长，故补脾者，必须补肾中
之水火也。方用八味丸∶
熟地（八两） 山茱萸（四两） 山药（四两） 泽泻 丹皮 茯苓（各三两） 附
子（一枚，甘草水制之） 肉桂（二两）蜜为丸。每日晚服八钱，服半月健饮，服一月
饱闷除矣，服两月疰夏之病全愈。
夫肉桂补火，而六味丸则纯补水者也。补水之味多于补火，则火得水之益而不燥，土
得火之利而不湿矣。此仍补先天以益后天之法也。
此症用健脾饮亦效。
白术 葳蕤（各五钱） 茯苓 山茱萸 白芍（各三钱） 人参（二钱） 甘草（五分）
当归 牛膝 麦冬（各三钱） 北五味（三分） 肉桂（一钱）水煎服。连服一月，精神
自健。
人在夏季时，常感到身体昏沉疲倦，四肢无力，整天想睡觉，完全没有精神，脚酸腿软。人们认为这是疰夏病（一种发生于夏季的慢性虚弱性疾病），但谁知道这其实是肾水亏乏的缘故呢？夏季火气炎上，全赖肾水的滋润，这样五脏六腑才能得到灌注，不至于出现干燥的病患。然而夏日正值水气衰弱之时，人的肾水没有完全旺盛的。凡是人到了夏天，虽然大多会感到困倦，但还不至于像疰夏病那样严重。疰夏病，是因为肾水亏乏，这是由于冬季没有藏精的缘故。精气没有在冬季封藏，夏季的火气就难以旺盛，所以才会感到困乏。
虽然夏季火气胜，容易损伤脾胃，人的困乏，自然也是由于脾胃之气衰弱所致。这似乎与肾水没有关系，但岂知肾中没有水，就不能分润滋养脾胃，导致脾胃津液干枯，又怎么能制约外来的旺火呢？火没有水的制约，脾胃受到火的刑伤，那么脾胃就没有津液，只能顾护自身，势难将精气转输到手足，因此四肢无力、精神倦怠，也是理所当然的。治疗方法必须以健脾开胃为主。脾健胃开，那么所吃的饮食，自然能化生为精微物质，从而滋生肾水；再加上补肾的药物，以蒸腾激发脾肾之气，那么水土就不相克反而相生，何必担心疰夏病的困扰呢？方剂用胜夏丹：白术（二钱）、茯苓（二钱）、陈皮（三分）、人参（五分）、北五味子（三分）、熟地黄（五钱）、山茱萸（二钱）、神曲（三分）、白芥子（一钱）、山药（三钱）、芡实（三钱）、炒酸枣仁（一钱）。用水煎服。每日一剂，服用十剂后，精神就会焕发。再服十剂，身体就会健壮旺盛。这个方子看起来平平无奇，但轻重多寡的配合十分精妙，既没有阳气过盛的忧虑，也没有阴气衰败的弊端，能唤醒脾胃之气，生发心肾之津，可以长期服用以取效，也可以近期服用以建功。
此症使用鼓神汤也有效。熟地黄、麦冬（各五钱）、白芍、地骨皮、沙参（各二钱）、甘草、贝母（各三分）、人参、神曲（各五分）、白术（三钱）、牡丹皮（一钱）。用水煎服。每日服用一剂，服用一个月，精神自然旺盛，不再困倦。
人在三伏天时，悠悠忽忽，懒得进食，气力全无，稍微贪吃美味，腹中就会闷胀，稍微遇到风凉，大便就会泄泻。人们以为这是疰夏病，但谁知道这是脾气困乏的缘故呢？人的先天之本是肾，后天之本是脾。脾气健运，那么所用的饮食自然化为精微，足以补充肾水的不足。如果在春冬之际，先伤了脾土，那么土气衰弱就难以消化食物，所用的饮食势必停滞在胃中，肾水没有脾土的资生，那么肾气更加枯竭，怎么能分布于筋骨呢？这就是精神气力疲倦乏乏的原因。似乎治疗方法应该急于补脾，然而脾土非肾火不能生长，肾火非肾水不能滋长，所以补脾的人，必须同时补肾中的水火。方剂用八味丸：熟地黄（八两）、山茱萸（四两）、山药（四两）、泽泻、牡丹皮、茯苓（各三两）、附子（一枚，用甘草水煮制）、肉桂（二两）。炼蜜为丸。每天傍晚服用八钱，服用半个月后食欲健全，服用一个月后饱闷消除，服用两个月后疰夏病痊愈。
肉桂补火，而六味丸则是纯粹补水的。补水的药味多于补火的药味，那么火得到水的益处而不燥热，土得到火的利益而不湿滞。这仍然是通过补益先天之本来增益后天之本的方法。
此症使用健脾饮也有效。白术、玉竹（葳蕤）（各五钱）、茯苓、山茱萸、白芍（各三钱）、人参（二钱）、甘草（五分）、当归、牛膝、麦冬（各三钱）、北五味子（三分）、肉桂（一钱）。用水煎服。连续服用一个月，精神自然强健。
When people reach the summer season, they often feel a heavy and fatigued body, weakness in the four limbs, a constant desire to sleep, complete lack of spirit, soreness in the legs and softness in the knees. People consider this to be Zhuxia disease (a chronic weak condition occurring in summer), but who would know that it is actually due to a deficiency of Kidney Water (Jing-Yin). In summer, Fire flares up, relying entirely on the moistening of Kidney Water, so that the Zang-Fu organs can be irrigated and avoid dryness. However, summer is precisely when Water energy declines, and no one's Kidney Water is fully flourishing. When people arrive at summer, although many feel tired, it is not as severe as Zhuxia disease. Zhuxia disease results from a deficiency of Kidney Water, which is caused by failing to store Jing (Essence) during winter. If Essence is not stored in winter, Fire cannot flourish in summer, hence the fatigue.
Although Summer Fire is dominant and often damages Spleen-Stomach, human fatigue is naturally due to the decline of Spleen-Stomach Qi. This seems unrelated to Kidney Water, but how could it be? Without Water in the Kidneys, there is no distribution to nourish the Spleen-Stomach, causing the Spleen-Stomach fluids to dry up. How then can it control the external blazing Fire? Without Water to restrain Fire, the Spleen-Stomach suffers from the punishment of Fire, leaving them without Jin-Ye (Body Fluids). They can only attend to themselves, making it difficult to transport nutrients to the hands and feet. Thus, weakness in the four limbs and mental fatigue are indeed appropriate outcomes. The treatment method must focus primarily on strengthening the Spleen and opening the Stomach. When the Spleen is strong and the Stomach opens, ingested food naturally transforms into fine essences to generate Kidney Water. Combined with herbs that tonify the Kidneys to vaporize and stimulate Spleen-Kidney Qi, Earth and Water will no longer overcome each other but instead generate each other. Why worry about Zhuxia disease? Use Shengxia Dan: Baizhu (Atractylodis Rhizoma, 2 qian), Fuling (Poria, 2 qian), Chenpi (Citri Reticulatae Pericarpium, 3 fen), Renshen (Ginseng Radix, 5 fen), Bei Wuweizi (Schisandrae Fructus, 3 fen), Shudi (Rehmanniae Radix Praeparata, 5 qian), Shanzhuyu (Corni Fructus, 2 qian), Shenqu (Massa Medicata Fermentata, 3 fen), Baijiezi (Sinapis Semen, 1 qian), Shanyao (Dioscoreae Rhizoma, 3 qian), Qianshi (Euryales Semen, 3 qian), Chao Zaoren (Ziziphi Spinosomi Semen, fried, 1 qian). Decoct in water and take orally. One dose daily. After ten doses, spirit will be revitalized. After another ten doses, the body will become robust. This prescription appears ordinary, but its balance of weight and quantity is exquisitely matched. It avoids the danger of excessive Yang and the drawback of deficient Yin, awakens Spleen-Stomach Qi, and generates Heart-Kidney fluids. It can be taken long-term for effect or short-term for quick results.
This syndrome is also effectively treated with Gushen Tang: Shudi (Rehmanniae Radix Praeparata), Maidong (Ophiopogonis Radix) (each 5 qian), Baishao (Paeoniae Radix Alba), Digupi (Lycii Cortex), Shashen (Glehniae Radix) (each 2 qian), Gancao (Glycyrrhizae Radix et Rhizoma), Beimu (Fritillariae Bulbus) (each 3 fen), Renshen (Ginseng Radix), Shenqu (Massa Medicata Fermentata) (each 5 fen), Baizhu (Atractylodis Rhizoma, 3 qian), Danpi (Moutan Cortex, 1 qian). Decoct in water and take orally. One dose daily. After one month, spirit will naturally flourish, and fatigue will cease.
During the Sanfu period (the hottest days of summer), people may feel lethargic, reluctant to eat, completely lacking strength. If they slightly indulge in delicious food, their abdomen becomes bloated; if they encounter slight wind or coolness, their stool becomes loose. People think this is Zhuxia disease, but who knows it is actually due to Spleen Qi being trapped and deficient? The human congenital foundation is the Kidney, and the acquired foundation is the Spleen. When Spleen Qi is healthy, ingested food naturally transforms into fine essences, sufficient to supplement Kidney Water. If the Spleen Earth is injured first during spring and winter, the weakened Earth cannot transform food, causing ingested matter to stagnate in the Stomach. Without Spleen Earth to nourish it, Kidney Water lacks support, causing Kidney Qi to dry up further. How can it then distribute to the sinews and bones? This is why spirit and strength become fatigued. It might seem that the treatment should urgently tonify the Spleen. However, Spleen Earth is not generated without Kidney Fire, and Kidney Fire does not grow without Kidney Water. Therefore, those who tonify the Spleen must tonify both Water and Fire within the Kidneys. Use Bawei Wan: Shudi (Rehmanniae Radix Praeparata, 8 liang), Shanzhuyu (Corni Fructus, 4 liang), Shanyao (Dioscoreae Rhizoma, 4 liang), Zexie (Alismatis Rhizoma), Danpi (Moutan Cortex), Fuling (Poria) (each 3 liang), Fuzi (Aconiti Lateralis Radix Praeparata, one piece, processed with Glycyrrhizae water), Rougui (Cinnamomi Cortex, 2 liang). Make pills with honey. Take 8 qian every evening. After half a month, appetite improves; after one month, fullness and bloating disappear; after two months, Zhuxia disease is completely cured.
Rougui tonifies Fire, while Liuwei Wan (Six-Ingredient Pill with Rehmannia) purely tonifies Water. Since the ingredients tonifying Water exceed those tonifying Fire, Fire benefits from Water and does not become dry, while Earth benefits from Fire and does not become damp. This is still the method of tonifying the congenital foundation to benefit the acquired foundation.
This syndrome is also effectively treated with Jianpi Yin: Baizhu (Atractylodis Rhizoma), Weirui (Polygonati Odorati Rhizoma) (each 5 qian), Fuling (Poria), Shanzhuyu (Corni Fructus), Baishao (Paeoniae Radix Alba) (each 3 qian), Renshen (Ginseng Radix, 2 qian), Gancao (Glycyrrhizae Radix et Rhizoma, 5 fen), Danggui (Angelicae Sinensis Radix), Niuxi (Achyranthis Bidentatae Radix), Maidong (Ophiopogonis Radix) (each 3 qian), Bei Wuwei (Schisandrae Fructus, 3 fen), Rougui (Cinnamomi Cortex, 1 qian). Decoct in water and take orally. Take continuously for one month, and spirit will naturally strengthen.