This is the manifestation of kidney yin deficiency, and the foot heart is the Yongquan point of kidney yin meridian. If kidney yin is insufficient, kidney yang will be surplus, and yin and yang will be unbalanced, just like water and fire. Weak water and strong fire will naturally produce a feeling of heat, which should be treated in time. If left unchecked, it will also lead to diseases such as anxiety and fever. (palms, feet, head. A fever in the palms and soles of your feet means that your body is sending you a distress signal. In this case, it is more appropriate to eat white Dihuang pills than Liuwei Dihuang pills. If you are interested, you can see one of the famous prescriptions of Dr. Jack in Yangshengtang. Just talking about this knowledge.