You could try wearing support stockings during your workday to help with the swelling and pain in your feet and calves. These stockings promote blood flow and can prevent leg swelling. It's recommended to use stockings with around 20 mmHg of compression and to put them on first thing in the morning. Also, try to avoid very hot baths and showers. If your symptoms don't improve, it would be best to consult with your doctor for further advice.