Birth Control Patch
You can place the hormone patch on your lower abdomen, buttocks, or upper body but not on your breasts. Apply a new patch once a week on the same day of the week for 3 weeks. The patch delivers the hormones daily over 7 days. Wear each patch continuously until you replace it the following week. During the fourth week, you wear no patch. This is when you have a menstrual period.
Should the patch partially or completely come off before it is due to be changed, apply a replacement patch right away.
eMedicineHealth Medical Reference from Healthwise
To learn more visit Healthwise.org