Alcohol consumption will lower your blood sugar and therefore will decrease the amount of insulin your body needs to keep blood sugar normal. Try to do most of your driving early in the day if you're taking a long trip by car. If you haven't eaten in a while, test your blood sugar before driving. Always carry snacks like fruit, crackers, juice, or soda in the car in case your blood sugar drops too low. Ask ahead of time for a diabetes meal if you're traveling by plane.
Most airlines serve special meals for people with health needs.
Never put them in the suitcase you check or leave with someone else. Ask your doctor how to adjust your medicines, especially your insulin shots, if you're traveling across time zones. Take comfortable, well-fitting shoes on vacation. You will probably be walking more than usual and should take extra good care of your feet. Ask your doctor for a written prescription for your diabetes pills and the name of a doctor in the place you are going to be visiting if you're going to be away for a long time.