If a child’s back is sweaty and cold when he sleeps, it is mainly due to Yang deficiency. In addition to excessive sweating on the back, children often have cold hands and feet, a pale tongue, or even teeth marks on the tongue. In this case, timely treatment can be carried out to warm the yang, tonify the deficiency and stop sweating, which can be treated with Gui Zhi Tang or Gui Zhi Long Bone and Oyster Tang. Both Gui Zhi Tang and Gui Zhi Long Bone and Oyster Tang have good effects of warming the yang, tonifying the deficiency and stopping sweating, and the ingredients of the two medicines include Gui Zhi and Bai Shao.