How long it takes for herbal menstrual regulation to be effective depends on the type of disease, the severity of the condition and the individual patient’s constitution, and cannot be generalized. For menstrual pain management with Chinese herbs, it usually starts about 1 week before each menstrual period and will take about 3-6 months to have some effect. If it is to regulate endocrine disorders of the ovaries, it may take about six months to take effect. In the case of herbal treatment for polycystic ovary syndrome or premature ovarian failure, the effect and duration of treatment will vary from person to person due to individual differences in sensitivity to the medication, and may take 2-3 months to take effect, or may take a year or more. Patients should pay attention to abstain from eating cold, greasy, spicy and stimulating food, maintain a regular life, avoid staying up late and avoid anxiety during the period of taking Chinese medicine.