Drastically cutting fluids before taking a long car trip might help prevent urine leakage.
This may, however, lead to your urine becoming highly concentrated because of reduced fluid intake, and can cause irritation and discomfort.
Rather avoid caffeinated drinks such as sodas, black tea and coffee (these are all diuretics, which cause you to urinate more), stick to water and stop frequently for bathroom breaks.
Visit our Incontinence Centre for more on managing this condition.