Ditto the Terro.
Spray ant killer just kills the ones you can see and makes the rest find another path to lunch.
Terro is a bit sticky so put it on cardboard so you can toss the dead ones easily.
I had problems with OHA, (odorous house ants) the ones that smell like coconut when you squish ‘em. Redi-National came out, sprayed the outside and put traps around the inside. What did they bait the traps with? Terro. Ants all gone now.
Michael