It is better to exercise with sciatica than to rest for long periods, as exercise can help to reduce pain, inflammation, and stiffness, and improve blood flow, muscle strength, and posture. However, exercise should be done in moderation, with proper warm-up and stretching, and with low-impact activities, such as walking, swimming, or cycling. Exercise should also be tailored to the individual's condition and symptoms, and guided by a doctor or physical therapist. Resting for a few hours or days may be helpful when the pain is very intense, but prolonged bed rest can worsen the pain and cause other problems, such as muscle weakness, depression, or blood clots. Therefore, it is important to get up and move around as soon as possible, and gradually resume normal activities.