Can someone tell me how to get rid of sugar ants in my kitchen ?

I need a natural remedy, because it is in the kitchen where the food is handled. I see some every day. The first day I saw them , there was a swarm of them, I thought I got rid of them, but since then I see a few every day, and they are not in a localized area, but everywhere and only four or five at a time...I guess they want to keep me on my toes. HELP !!!