Outside of latex condoms and certain spermicides, it is extremely rare for a woman to have an allergic reaction to any form of birth control. That includes oral contraceptives. With cases of less than one in a thousand, birth control allergies are not normal for majority of women. But what if you are allergic to birth control? Dr. Kirtly Parker Jones explains the difference between allergies and side effects, and how you can better understand your symptoms of birth control.