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The Spleen belongs to the Taiyin (Greater Yin) channel and corresponds to Kun Earth in the Five Elements; its nature prefers dryness and dislikes dampness. Therefore, for those with insufficient Qi of the Spleen and Stomach, when encountering the humid and muggy climate of late summer, they cannot raise the clear Yang Qi nor fortify the middle Qi. Furthermore, during this time when the Ministerial Fire of Shaoyang (Lesser Yang) is prevalent, heat damages the original Qi, resulting in symptoms such as limb fatigue and flaccidity, weakness in both legs, lethargy with fever, mental insufficiency, poor appetite, tastelessness in the mouth, shortness of breath and rapid breathing, blurred vision, red and frequent urination, and irregular bowel movements. This condition is called "Zhu Xia" (Summer Malaise). These are all syndromes of congenital Yin deficiency and insufficient original Qi, which Zhu Danxi discussed in detail in his *Treatise on Nourishing Yin*. Those who raise children, how can they not know the way of nourishing Yang in winter? The treatment method involves using Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction), removing Shengma (Cimicifugae Rhizoma) and Chaihu (Bupleuri Radix), and adding stir-fried black Huangbai (Phellodendri Cortex) as the main prescription. If fever is caused by overwork and blood deficiency with a large pulse, use Danggui Buxue Tang (Dongquiang Blood-Nourishing Decoction); if there is Spleen-Stomach cold-heat alternation and poor appetite, use Chaihu Zhizi San (Bupleurum and Gardenia Powder); if stomach fire causes thirst, use Zhuye Shigao Tang (Bamboo Leaf and Gypsum Decoction). Children often suffer because of the mother's disharmonious Qi; thus, the nursing mother should abstain from anger, regulate her diet, and adapt to temperature changes, thereby avoiding disease. Additionally, nowadays people steep Xiangru Tang (Mosla Decoction) in cold water to drink instead of tea in summer, unaware that Xiangru promotes diuresis and severely damages original Yang, and Houpo (Magnoliae Officinalis Cortex) has a suppressing effect that greatly drains true Qi. Moreover, the Spleen's nature prefers warmth and dislikes cold; in summer, Yin is abundant internally, and cold drinks injure the Spleen. For those with strong Stomach fire or diseases caused by damp-heat, this may indeed cause no major harm, but for those with weak Spleen-Stomach and insufficient middle Qi, it will inevitably lead to abdominal pain, loss of appetite, diarrhea, and other cold-in-the-middle diseases. This is something adults should also beware of, let alone children! Be cautious, be cautious!

Case Records:
A child suffered from dry mouth, fever, lethargy, and excessive sleepiness every spring and summer, with headache upon exertion. After taking cooling and phlegm-resolving medicines, he experienced wheezing, diarrhea, and restlessness. After taking Xiangru Yin (Mosla Infusion), his pulse became large, and his spirit was confused and drowsy. I used Buzhong Yiqi Tang, removing Shengma and Chaihu, and added Wuweizi (Schisandrae Fructus), Maimendong (Ophiopogonis Radix), and Paojiang (Prepared Ginger). One dose did not cure him; after adding five fen of Rougui (Cinnamomi Cortex), he revived. He was then cured using Liuwei Wan (Six-Ingredient Pill with Rehmannia).

A child with congenital Spleen and Kidney weakness suffered from Zhu Xia fever and irregular bowel movements. He took Buzhong Yiqi Tang in the morning and Dihuang Wan (Rehmannia Pill) in the evening, and was cured. Later, due to the nursing mother's anger, the child developed fever and convulsions. Chaihu Zhizi San was administered to both mother and child, leading to recovery.

A child with a history of food stagnation suffered from Zhu Xia fever, fatigue, poor appetite, and loose stools. He took Wuyi Yigong San (Five-Agent Formula for Supporting the Righteous) in the morning with small amounts of Shengma and Chaihu, and Siwei Fei'er Wan (Four-Ingredient Pill for Enriching the Child) in the evening, recovering shortly thereafter.

A child with congenital Kidney deficiency suffered from Zhu Xia disease. Due to the nursing mother's severe overwork, the fever intensified. Buzhong Yiqi Tang was prescribed for both mother and child, resulting in recovery. Later, the child developed convulsions (due to maternal factors), and was cured using Chaihu Zhizi San and Jiawei Xiaoyao San (Modified Free and Easy Wanderer Powder).

A child suffering from Zhu Xia ate raw and cold foods, causing abdominal pain. Severe cases involved convulsions and cold limbs. Ren Shen Lizhong Wan (Ginseng Regulate the Middle Pill) was used, and he recovered.

A fourteen-year-old girl suffered from Zhu Xia. After menstruation, she experienced afternoon fever, restlessness, thirst, flushed face, and a large pulse that felt empty upon deep pressure. This was blood depletion causing agitation. She first took four doses of Danggui Buxue Tang; subsequently, Bazhen Tang (Eight-Treasure Decoction) stabilized her condition.

Chaihu Zhizi San (See "Fever")
Danggui Buxue Tang (See "Fever")
Bazhen Tang (See "Spontaneous Sweating")
Buzhong Yiqi Tang (See "Emaciation")
Dihuang Wan (See "Kidney")
Renshen Lizhong Tang (See "Cold Ulcer")
Zhuye Shigao Tang (See "Thirst")