I have diabetes and need to care for my feet carefully. Any advice?

High blood glucose causes poor blood flow to the legs and feet, so if you have a sore or infection, you need to monitor it closely and tell your physician, because it won't heal as easily as it would if you didn't have diabetes. Elevated blood glucose levels can also lead to nerve damage, which means loss of feeling in your feet. If this happens, you'll need to make sure you're wearing footwear that fits properly to avoid injury.
The best course of action is to prevent problems, and the National Diabetes Education Program offers a great resource: www.ndep.nih.gov/campaigns/feet/feet_overview.htm.