Tongue coating is white and greasy, with cracks in the middle, hot palms, and dreams, which is considered to be yin deficiency with internal heat and dampness, and the treatment is mainly to nourish yin and clear heat (nourish yin essence and remove heat), and also to benefit dampness, which can be used in Zhi Bai Di Huang Pill with additions and subtractions. Cracks in the tongue coating here suggests yin deficiency and fluid insufficiency, so there are cracks; hot dreams in the palms of the hands are caused by yin deficiency and internal heat, which disturbs the mind; the tongue coating is white and greasy, and yin deficiency is often easy to be accompanied by dampness, which smothers on the tongue coating, so the coating is white and greasy. Zhi Bai Di Huang Pill consists of Zhi Mu, Huang Bai, Shu Di Huang, Chinese yam, Cornus officinalis, Dang Pi, Poria, Ze Xie Di, can nourish the kidney yin, clearing the heat, drying dampness, can be added on the basis of the spleen and diuresis drugs, such as Chen Pi. Do not take medication without authorization, need to use medication under the guidance of a doctor.