Taking emergency contraceptive pills breast swelling and pain is caused by the drug reaction, after stopping the drug can be relieved, usually do not need to take medication. Emergency contraceptive pills are hormonal drugs, some women take them due to fluctuations in hormone levels in the body and the phenomenon of breast swelling and pain, which is a common adverse reaction to the drug. Usually, breast swelling and pain can be relieved or disappear on their own after stopping the pill, and women do not need to take special medication to relieve the pain. If a woman’s breast pain is severe, if necessary, follow the doctor’s instructions to take ibuprofen, aspirin and other drugs to relieve. For women who take emergency contraceptive pills for breast swelling and pain, you can also through the local hot compresses, appropriate massage and other ways to ease the discomfort. In the near future, you should also wear loose, cotton underwear, try to avoid wearing tight clothes, to reduce the friction and stimulation of foreign objects. For those who do not have childbearing requirements, take protective measures during sex to avoid unwanted pregnancy. It is recommended that women follow the doctor’s instructions to use medication, can not be indiscriminate use of drugs, because long-term use of emergency contraceptive pills will lead to endocrine disruption, and even induce infertility, should be taken seriously.