Heat in the hands and feet in summer is a manifestation of kidney yin deficiency. It is important to pay attention to this time, and medicines for kidney yin deficiency can be applied appropriately. These drugs are dry cold medicine, such as yu zhu, dogwood, wolfberry, western ginseng, etc. You can also take Chinese patent medicine, recommended to apply Liu Wei Di Huang Wan. Cold hands and feet in winter is a manifestation of kidney yang deficiency, this time use more hot drugs, such as Radix et Rhizoma, Cinnamon, Deer antler, etc. The recommended Chinese medicine is Guihundihuang Pill. In terms of dietary supplements, you can consider eating more warm foods at this time, such as dog meat, mutton, leek, loach, etc. You can also take Jin Kui Kidney Qi Pills. From the Western medicine point of view, cold hands and feet is poor peripheral blood circulation, we should pay attention to strengthen exercise, local warmth, diet should pay attention to light, do not eat too much greasy food, and strengthen exercise. In addition, hot hands and feet in summer and cold hands and feet in winter are often the manifestation of plant nerve dysfunction, generally without organic lesions, so I hope we can not be too anxious.