Patient Pan, female, 67 years old, housewife. consulted on May 16, 2014. Complaint: excessive sweating and insomnia for more than 3 months. The patient suffered from post-operative chemotherapy for breast cancer and was physically weak after chemotherapy, which made her very susceptible to wind and cold. This attack originated from the wind and cold she felt when she went out in February this year, when she had a fever of 39.7℃ cold, i pain in the limbs, irritability, cold and no sweating. The fever gradually receded after taking the drugs such as Benadryl, Contec and Vitamin C silver warp tablets. But since then sweating continuously, sweating like rain at every turn, more underwear several times a day, cold, hands and feet are not warm, sleep is very poor, less than 3 hours of sleep per night, and very easy to wake up, sleep is more dreams, tongue pale dull, the side of the tooth marks, white slippery moss, sunken and weak pulse, heavy pressure, double inch slightly floating. Diagnosis in Western medicine: 1. insomnia; 2. dysfunction of vegetative nerves. Traditional Chinese medicine diagnosis: 1, insomnia; 2, sweating evidence. Chinese medicine diagnosis: deficiency of Yang energy, Yin is not internally guarded, and Ying and Wei are not in harmony. Prescription: Gui Zhi plus Dragon Bone and Oyster Soup, using: Gui Zhi 30g, Bai Shao 30g, Da Zao 10g, Dragon Bone 30g, Oyster 30g, Huang Qi 30g, Ginger 3 slices, Roasted Licorice 6g. 7 doses. The patient’s feedback was that after 3 doses, the sleep improved and the sweating decreased significantly. After 7 doses, the sweating was basically normal and the sleep was much improved. For the second consultation, we added 30g of sour date palm (broken) and 15g of cooked sapodilla (decoction first) to the previous prescription. Take 7 more doses. At the third consultation, the patient’s sweating had basically returned to normal, and he was able to sleep for more than 6 hours every night. Later, he was treated with Gui Zhi Tang combined with Radix et Rhizoma Polygonati. The patient’s sweating was caused by the sweating agents such as Benadryl and Contec, which caused the deficiency of Yang and depletion of fluids, and made the Wei-Yang float over, thus violating the precept of deficiency. This disease is exactly the evidence of strong Wei and weak Ying of Gui Zhi Tang. If the Wei is strong, the pulse will be floating and lose its solidity; if the Ying is weak, the pressure will be heavy and weak, and the sweat will be drained, so it is urgent to harmonize the Ying and the Wei, converge the Yang and stop the sweat, support the righteousness and dispel the evil. The patient’s symptoms were alleviated after taking the medicine. After three consultations, he was as normal. Later, the patient was given an agent to strengthen the spleen, warm the Yang, and harmonize the Ying and Wei to consolidate the therapeutic effect. Gui Zhi plus Dragon Bone and Oyster Soup is extracted from “Jin Kui Yao Yao”. The treatment is: “…… dizziness and dizziness of the eyes and hair, the pulse is extremely deficient and hollow and late, the pulse has all the hollow movements and is slightly tight, the man loses semen, the woman dreams of intercourse” and other symptoms of deficiency of both yin and yang, the pathogenesis of which is the failure of yang to consolidate and the failure of yin to keep within. In clinical cases of excessive sweating and insomnia, the symptoms are often treated with Angelica Sinensis Six Yellow Soup, Yu Ping Feng San, Liu Wei Di Huang Tang, or iteratively with mulberry leaves, calcined dragon peony, or ephedra root, which can also be effective from time to time. However, there are not a few people who do not work. The source of sweat is actually the water and grain essence transported by the spleen and stomach, which is transferred to the lungs, and by the lung qi of the Xuanzhi release to the skin and hair, irrigating the internal organs. When it is moistened in the body as fluid, and through the hair orifice, out of the skin, it is sweat. Su Wen? The “yin and yang” says: “Yang added to yin, is called sweat.” This is understood to mean that the yin fluid is steamed by the yang heat, so it comes out as sweat. However, “yang is the guard outside and solid.” This is the yang qi is solid, the yin and fluids within the guard, before the yin and yang secret, sweat is not to leak. If the Yang Qi is weak, the guard out of duty, the coup is loose, the yin is bound to leak out and sweat. Most of the evidence seen, most of this. There are even more because of the wind evil agitation, so that the Yang Qi floating over and not for the guard, the yinjin delusional discharge and not solid, Yin and Yang do not coordinate each other and sweat. The Yang floating over the wind evil attacked, the Wei Yang to protect the cause, but also the wind evil development coup, the yin and the delusion of drainage, yin does not fix the cause of Yang. Therefore, the evidence of both the deficiency of Yang and thieves fighting the wind fever, but also the coup draining of the miserly vicious cold, the vicious wind, sweating out of the disease. Therefore, the doctor should not see a fever, that is, cast clear heat, a see sweating that is cast solid astringent. I do not know that this is also the Ying and Wei is not and the wait, need to be urgent to help Yang and Ying, help Yang can remove the evil to stop sweating, and Ying can be solid Yang real table, so the Yin and Yang peace, the muscle coup solid dense, remove the evil guard table, what heat there, what sweat and drain.