If the menstrual period is 3 days earlier than the original period, it is generally normal and does not require special adjustment; however, if it is more than 7 days earlier, it is considered as pre-menstrual period, and can be adjusted by taking Chinese medicines such as Fixed Menstruation Pills under the guidance of physician’s diagnosis and guidance. It is composed of Huangbai, Scutellaria baicalensis, Tsubaki Pi, Xiangsui, Paeoniae alba, and Kamehameha, with the effect of nourishing yin and clearing heat (nourishing yin essence and clearing away heat), fixing menstruation and stopping menstruation. It can be used for those who suffer from deficiency of yin and heat in blood in the menstrual phase, with symptoms such as early and scanty menstrual period, reddish color, red cheekbones, red lips, heat in the hands and feet and dryness in the mouth, etc. The adverse effects of this medicine are not clear. The adverse effects of this drug are not clear, and patients with cold and fever are not suitable to take this drug. People with high blood pressure, heart disease, liver disease, diabetes, kidney disease and other serious chronic diseases and those with spleen deficiency and loose stools should take it under the guidance of a physician. Avoid spicy, raw and cold food during the period of taking the medicine. For those who have early menstruation every month, it is recommended to consult a doctor in time and use medication under the guidance of a traditional Chinese medicine practitioner to regulate the menstrual period, rather than blindly using the medication by oneself.