go to the provision shop or minimart to get some
ant-poison..
they are little blister-packs of this beige granules...
put the stuff near the trails.. and if the ants do not take them,
sweep away, take another lot from the blister pack, add a few
grains of sugar, drip a few drops of water to get the sugar to coat
the poison... then put near the trails...
the ants will take them to their colony.. the poison is slow acting
and will then kill the queen ant.. it'll take a few days for the
thing to work...
after that, no more ants in the house...
my house has been ant-free for the past few years already 