During your Pre–Op phone call, the nurse will ask you questions about your health history and give you important Pre–Op instructions. Take a shower with an antibacterial body wash with chlorhexidine the evening before your surgery. You can find this type of body wash (such as Hibiclens®) in the First Aid section of a pharmacy. • You shouldn't have anything to eat or drink after 11:30pm (or other time specified by the Pre–Op nurse). This includes mints, candy and chewing gum. An empty stomach lowers the risks of anesthesia. It's very important to follow this rule. You may brush your teeth in the morning, but don't swallow the water. Depending on the time of your surgery, these instructions may be changed slightly — the nurse will let you know if there are any changes during your Pre–Op call.