Because the patch contains the same hormones as birth control pills, women who use it may have the same negative effects. Breast soreness, nausea, headaches, and mood swings are more likely to occur when a woman first begins using the patch. These symptoms usually go away after several days without the patch. Women who use the patch for more than three months may experience weight gain, increased appetite, insomnia, depression, anxiety, irritability, or other changes in mood. If you experience any change in mood while using the patch, stop wearing it and call your doctor right away. You can wear the patch daily over most of your body including your face. However, do not put it in areas where you would not normally be able to feel pain such as behind your ears or on your scalp. Removing patches during sleep will help ensure that you don't miss any patches. Otherwise, you might wake up feeling nauseated or sick to your stomach because some people find that it feels like they're not wearing a patch at all during these hours. If you plan to take the patch off and then back on again within seven days, there is no need to remove it before you go to bed. Just put it back on next morning at the same time.