Get a product called Combat Gel at the hardware store, home depot, lowes etc. It's an ant bait in gel form. Comes as a large plastic syringe. Just push out a few drops where the ants are active. Leave the ants alone - don't kill them. Let the ants feed on the gel. The ants will carry it back to nest, share with all and that's the end of it. Takes about 3 to 5 days to work. Works great! When you have ants in your house it usually indicates a satellite nest within the house! The satellite nest is collecting food and moving it outside to the mother nest.