If you have an ant problem then life can become a bit of a living hell. Ants get everywhere and get inside everything in your house. They will randomly crawl up your leg and bite you, crawl in to your food storage and pantry, and just end up everywhere you look. Getting rid of ants requires that you do something not just about an area or a few specific ants, but you do something about a whole colony.
If you have an ant problem then chances are that you are absolutely surrounded by ants even if you do not realize that it has happened. Ants live under ground and will have probably managed to dig in and around your house with multiple entry points. This means that leaving some poison around a certain area or spraying a certain area will have a small effect but the ants will end up coming in from another area. The best way to get rid of the ants for good is to use ant bait and gel to kill them at their source. You will find that this smart way to get rid of ants is super effective because it takes the poison or insecticide down to the underground colony of the ants and it poisons all the ants including their queen so no new ants are produced.
The ant baits work really well as they are tricking the ants in to thinking that they are simply picking up food items and then taking them down to their storage. The food in the ant bait and gel is lined with chemicals that are toxic to ants and when enough of them are carried in to their burrows then the ants will start dying out and leave you with a clean house.