Zhi Bai Di Huang Wan works by nourishing yin and reducing fire. How long you need to take them needs to be judged according to your specific condition and cannot be generalized.
Zhi Bai Di Huang Wan is mainly composed of Zedoaria, Poria, Mudan Pi, Yam, Cornu Cervi, Zhi Mu, Phellodendron Bark, Radix Rehmanniae Praeparata and other medicines. It has the effect of lowering fire and nourishing Yin. It is often used in the treatment of dry throat and mouth, deafness and tinnitus, blurred vision, hot flashes and night sweating (sweating abnormally after going to sleep and stopping after waking up), and yellow urine.
The adverse reactions and contraindications of Zhi Bai Di Huang Wan have not been clarified, and this drug should be used with caution in pregnant women.
Drugs need to be taken under the advice of a physician, if the body is not feeling well, you need to go to the hospital in time.