Problem: The nurse would instruct Janna to place the scopolamine patch on the hairless skin behind your ear. When used to help prevent nausea and vomiting caused by motion sickness, apply the patch at least 4 hours before its effects will be needed and leave in place for up to 3 days. Choose an area with little or no hair and free of scars, cuts, pain, tenderness, or irritation. Press the patch firmly in place with your fingertips to make sure that the edges of the patch stick well. Looking for Assignment Help?