Once children are diagnosed with precocious puberty, which usually refers to girls developing breasts before the age of 8 and boys showing signs of secondary sexual characteristics such as increased testicular volume and penile thickening before the age of 9, the method to reduce estrogen depends on the severity of the precocious puberty. This includes whether it affects the child's height and the maturity level of the sexual organs, as well as taking into account the estrogen levels at the time of examination for treatment. Mild cases usually do not require medication and can be addressed through dietary and exercise interventions. For moderate cases where hormone levels in the blood have not reached a severe state and there is some loss of height but not to the extent that requires treatment through injections, oral Chinese medicine can be used to reduce estrogen levels. In severe cases, where there is significant change in height, sexual organs, and high hormone levels in the blood, medication such as gonadotropin-releasing hormone analogs can be used to control the child’s sexual development.