There's a few good home remedies that works to get rid of ants.
If you have some baking soda and sugar you can make a homemade ant bait by mixing equal parts of baking soda with equal parts of sugar and place the ant bait into something such as a bottle cap or milk jug cap.
The sugar will then attract the ants to the bait and the baking soda will kill the ants.
You can also make a homemade ant spray killer from white Vinegar essential oils and water.
Once again mix equal parts of the white vinegar and equal parts of water together and add a couple of drops of essential oil to the vinegar and water and pour the mixture into a spray bottle and shake the bottle up to mix it it really good.
Then spray the white vinegar and water onto the ants on the kitchen counter or anywhere else there's ants are coming in at.
When the ants are dead you can then just wipe the dead ants up.