Heat in the heart of the hands and feet at night is usually a symptom of Yin deficiency and fire. In addition to heat in the heart of the hands and feet, there may also be dampness in the lower body and lower jiao, such as dampness in the scrotum or increased leucorrhea in women, sweating in the body, poor mood during the day, easy impatience and irritability, easy blushing or easy sweating, dry mouth, astringent mouth, easy dry eyes, and a stuffy feeling in the ears, all of which are symptoms of yin deficiency fire or yang fire. In addition to the heat in the heart of the hands and feet and the symptoms mentioned above, there will also be heart trouble, chest tightness or the appearance of excessive dreams and poor sleep at night. In this case, the main focus is to nourish Yin and lower fire. If the symptoms are mild, you can take Liu Wei Di Huang Wan; if the symptoms are more severe, the symptoms of deficiency heat are obvious, and the symptoms of Yin deficiency fire are even more obvious, you can choose Zhi Bai Di Huang Wan or use Chinese herbal medicine to adjust the combination.