The main cause of hot hands and feet in summer and cold in winter is the deficiency of yin and yang.
According to Chinese medicine, a deficiency of yang leads to internal cold and a deficiency of yin leads to internal heat. The main causes of yang deficiency are long-term use of medicines that remove heat and fire (to remove heat and fire from the body), gluttony for cold drinks that damage the spleen and stomach yang, and old age and physical deterioration. Cold hands and feet in winter are often accompanied by back pain and leg weakness. You can take Jin Gui Kidney Qi Pill, which has the effect of warming and tonifying kidney yang (warming and replenishing kidney yang qi).
Yin deficiency can be caused by excessive use of warm and dry medicines, etc. In this group, hot hands and feet in summer are often accompanied by dry mouth and tongue, insomnia and heartburn, so they can take Liu Wei Di Huang Wan, which can nourish yin and tonify the kidneys and can treat heatiness of the hands and feet caused by yin deficiency. The adverse effects of the above drugs are not clear, pregnant women are forbidden to take Jin Gui Kidney Qi Pill, Liu Wei Di Huang Wan contraindications are not clear. It is recommended that patients with hot hands and feet in summer and cold hands and feet in winter should consult a traditional Chinese medicine practitioner for standardized treatment under the guidance of diagnosis.