Formulas for treating deficiency of yin and yang include Gui De Er Xian Gum and Di Huang Drink. 1. Turtle Deer and Two Immortals Gum is from “Medical Poetry”, which is composed of antler, tortoise board, wolfberry and ginseng, and has the effect of filling essence and nourishing yin, benefiting qi and strengthening yang, and can be used for the evidence of deficiency of essence and blood, which can be seen as impotence and spermatorrhea, generalized thinness, lumbar and knee soreness and weakness (feeling of soreness and weakness in lumbar and knee), dimming of eyes and prolonged impregnation. 2. Di Huang Drink is from “Huang Di Su Wen Xuan Ming Lun Fang”, which is composed of Ba Ji, Dendrobium, Cooked Dried Di Huang, Guan Gui, Yuan Zhi, Cornu Cervi, Schisandra, Calamus, Cistanches, Poria, Poria, Psoriasis, Maitake Mentha. It has the effects of tonifying kidney yang, nourishing kidney yin, opening the orifices and resolving phlegm, and can be used for mute heat rash, with symptoms such as foot wastage and inability to use the foot, strong tongue and inability to speak, dry mouth and inappetence for drinking, cold feet and face with redness, and sunken and weak pulse. Both Gou Deer Er Xian Gum and Dihuang Drink are yin and yang tonic agents, treating both yin and yang deficiencies with the same treatment, contraindications and adverse effects are not clear. Please do not use them on your own to avoid adverse reactions.