How long it takes to regulate Yin and Yang deficiency is mainly determined by the patient’s condition and the tolerance of the patient’s physique, so it cannot be generalized. Patients with deficiency of yin and yang can follow the doctor’s instructions to take Tonic Tian Dazhou Pills or Di Huang Drink, etc. If there are symptoms of both Yin and Yang deficiency, it is recommended that treatment be carried out under the guidance of a doctor. Yin and Yang deficiency belongs to the category of deficiency labor, which is mainly manifested by the co-existence of Yang deficiency and Yin deficiency. Deficiency of yang qi will lead to symptoms such as coldness (fear of cold, cold limbs), fatigue, etc. Deficiency of yin qi will also lead to symptoms such as thirst and desire to drink, warmth of the hands, feet and heart, and night sweating (sweating abnormally after going to sleep, but sweating stops after waking up). 1. Tonic Heaven Da Zao Pill, composed of Prepared Zi He Che, Cooked Rehmanniae, Wine Fennel and so on. It has the efficacy of strengthening yuanyang and nourishing kidney water. It is clinically used for treating excessive sexual intercourse, five heartburns and heat (heat in the heart of the two hands and the two feet, and self-consciousness of heart and chest), deficiency and insufficiency. 2. Di Huang Drink is composed of Radix Rehmanniae Praeparata, Radix Morinda Citrifoliae, Cornus Officinalis, Dendrobium, Herba Cistanches, Radix Polygoni Multiflori, and Fructus Pilosulae. It has the effects of nourishing kidney yin, tonifying kidney yang, opening the orifices and resolving phlegm. It is clinically used in the treatment of mute heat rash with deficiency of the lower element and upward flooding of phlegm and turbidity, which is characterized by a strong tongue that is unable to speak, a foot that is unable to be used, a dry mouth that does not want to drink, a cold foot and a red face, and a sunken, thin and weak pulse.