What can a person do for fluid build up, in both legs, ankles and feet. It hurts so bad at times. They are so swollen especially in hot weather?

Medical check up. Swelling of feet indicates fluid retention. It can be caused by many different conditions.......from varicose veins to Heart, liver or kidney disease. In order to find the cause, you should go see your doctor for a physical exam and some simple blood tests for the start. Later more tests for the affected organ may be necessary in order to make the final diagnosis and proper treatment..