You can take vitamin C and vitamin B6 after taking the emergency contraceptive pill to relieve the gastrointestinal reactions such as nausea and vomiting caused by the pill. Emergency contraceptive pills can also cause endocrine disorders and menstrual disorders, and there is no way to prevent them. After taking the emergency contraceptive pill, it is best to eat more vegetables and fruits to speed up the body’s metabolism, and drink more water to promote the excretion of drugs in the body. The endocrine disorder caused by taking emergency contraceptive pills and menstrual disorders can return to normal in 2-3 months by themselves. If menstruation does not return, you need to have ultrasound and blood test for sex hormone 6, and use hormone medication under the guidance of doctor. If you don’t want to have children, you can also wear an intrauterine device. It is best not to take the pill too often, not more than 3 times a year at most.