You can spray the outside of your house with an insecticide but it will need to be replace after it rains. You can use a powder ant killer and place it along the edges of each room.(Boric Acid) It is a natural product and shouldn't hurt you. It will dry up ants and they won't come back. Wear a mask and gloves when applying any insecticide and wash clothes after.
Okay listen I am deadly afraid of ants and bugs, this is what happened. I was sitting in my room on my computer (Macbook), and I suddenly look up and there was a ant on the top of my computer, obviously I freaked out and almost cried. I killed the ant and switched rooms, I moved to a different room across the house. Now laterally 3 minutes ago the same thing happened, another ant was crawling down my computer. I'm freaking out, what do I do to stop this !!!! Where in the world are they coming from, I clean all the time.