Daying-35 refers to ethinyl estradiol cyproterone tablets, which are usually started on the 2nd to 5th day of menstruation and need to be taken for 21 consecutive days as a course of treatment. Ethinylestradiol Cyproterone Tablets is a combination preparation whose main ingredients are cyproterone acetate and ethinylestradiol, which can be used for oral contraception and for the treatment of androgen-dependent disorders in women, such as acne, papulopustular acne, nodular cystic acne, androgenetic alopecia in women, and polycystic ovary syndrome. Ethinyl estradiol cyproterone tablets are usually taken from the 2nd-5th day of the menstrual period, and after 21 consecutive days of taking the medication and stopping it for 2-3 days, the menstrual period will come, usually not more than 7 days. The second box of tablets is taken on the second to fifth day of menstruation. Patients may experience breast tenderness, pain, and enlargement; gastrointestinal nausea and vomiting; and changes in vaginal discharge. For pregnant women, children and other people should be prohibited to take this drug. Patients are advised to take the medicine strictly according to the doctor’s prescription, and do not change the dosage of the medicine without authorization or abuse the medicine privately.