Swelling remedies

So I know I've posted about my feet swelling a couple of times but now it's starting to hurt. I'm a teacher so I am on my feet a lot but since I've gone back to work I have tried to forces myself to sit down more. However they just keep getting bigger and bigger. The swelling does go some a small amount over night because all I do when I get off is sit on the couch with my feet up. Since they've been swollen for over a week it's starting to hurt, does anyone know of any remedies other then keeping them elevated to help the swelling??