Swelling of the lower extremities, especially during the latter months of pregnancy, is a normal physiologic even. Swelling of the hands or face should be brought to the attention of the doctor. Staying off your fee and lying on your left side is usually quite beneficial in helping to decrease swelling. Sometimes your swelling may be due to excess salt in your diet. Some salt in your diet is necessary, but excessively salty foods and salting food at the table should be avoided.