For patients with Yin deficiency and fire, the length of time to take Zhi Bai Di Huang Wan will vary depending on the patient’s health, the severity of the condition, and the response to the drug treatment, etc. Generally, it can take 10 days to see results and about 1 month to cure. But also check if the patient has any lower jiao problems, such as inflammation. The common cause of Yin deficiency and fire is Yin deficiency with heat or fire in the body resulting in symptoms such as irritability, dry mouth, heat in the hands and feet, night sweating and irritability. Taking Zhi Bai Di Huang Wan can nourish Yin and lower fire, but because of its mild effect, patients have a long time to take it, and may still need to take it after 1 month, depending on the specific condition, until the symptoms disappear completely. During the period of taking Zhi Bai Di Huang Wan, patients need to be careful not to consume cold, spicy and stimulating foods, seafood, etc., so as not to affect the therapeutic effect of the drug. In addition, Zhi Pai Di Huang Wan is not suitable for pregnant women and people with cold constitution to avoid damage to the body.