We bought this house when I was pregnant, we moved in and so did the ants! They are little to medium sized black ants and they do bite. I was so sick of waking up finding them all over my body It made me more depressed thinking about what they could do to bub.
We tried everything the internet says, indoor & outdoor. Spray bought from Bunnings, Safeway etc. that says protection up to 6 months only work for like half an hour. I sprinkled cinnamon, pepper, eucalyptus oil, cloves, chilli... they seemed confused at first but then just resumed their line! Borax mixed with sugar/jam/meat..., ant chalk, antrid, ant powder, bifenthrin ,etc... we tried it all. In the end I just put baby powder around our bed legs, put double sided sticky tape on bub's bassinet & cot legs. But since DS is getting more mobile around the house now, I can't use baby powder on the floor anymore because he can inhale it. They climb on sticky tape over dust and dead bodies of other ants
We hired a pest control company, they put traps indoor & outdoor, sprinkled something on the roof where the ants always go through, spray, etc... 3 months warranty and we already called them to come back couple of times, it just doesn't work!
On a hot day which is everyday here where I live, they swam into the house. I don't know what they want but definitely not food. They get into weird things like my (clean) disposable breast pads, nappies, closet, air conditioner, electricity socket, my laptop,... I don't want to spend money on pesticide products anymore because nothing works. I just spray soapy water, vinegar, glass cleaner or whatever available just to drown them. Sometimes if I find a nest in the garden I give them a whole kettle of boiled water.
Seriously thinking about selling the house but DH says it's the whole area, you can't escape. I'm just so over waking up everyday making soapy spray bottles and boil water to kill ants, searching crazily through DS's body each time he cries to make sure it's not an ant bite, check each and every nappy to make sure the little buggers are not in there!!!!
Sorry for the long rant, I need to let it out somewhere