How do you get rid of cockroaches someone came into our home with them

Clean

Be sure to clean any rooms that your guests have been in. This will ensure that the eggs are destroyed before they have a chance to hatch. Likewise, adult cockroaches will be stopped from lurking in any dark corners nearby.

If your guests brought in and left any objects, be sure to put them outside or clean them thoroughly.

Set Up Traps

Eggs that hatch into nymphs, or adult roaches, may have escaped the objects they originally clung to. If left to scurry around, they’ll create their own nests.

Cockroaches rely on food and moisture to survive. Depriving them of both will discourage roaches from living in your home. They also prefer warm, moist areas to live in, as these climates encourage them to breed.

Baits are used in areas where you cannot use sprays or dust. These are basically poisoned bits of food that can be placed in different locations. Because most baits are actual foods, you need to keep these poisonous baits away from small children or pets.

Hope this helps.

https://www.hometalk.com/diy/outdoor/pest-repeller/how-to-get-rid-of-roaches-44425317

https://www.hometalk.com/diy/outdoor/pest-repeller/homemade-roach-spray-good-for-ants-and-other-bugs-too-43527424

Oh no, so sorry.

Make a mixture of half and half boric acid (dollar store) it is in powder form in a plastic bottle and sugar. The sugar draws them and the boric acid kills them. Keep away from pets and children.

A professional exterminator would be your best bet. Roaches are hard to get rid of and they multiply like crazy!

Diatomaceous earth sprinkled around. Once they come in contact, it will kill them. Boric acid works well too but it's not kid or pet safe.

we have great results with Ortho Home Defense you spray inside and outside your home and they kill all kinds of bugs including roaches

You could try diatomaceous earth.

You can try making use of Borax. Just combine equal parts borax and white table sugar. Dust the mixture any place you've seen roach activity. When the roaches consume the borax, it will dehydrate them and kill them rapidly.

My local all natural pest control uses foor grade DE. I recycled an old parmesan cheese bottle that has a cap on it that allows me to sprinkle this. It is safe for use around pets and kids and only effects bugs. The good part is that this is gentle to the person applying it as well.

And it is cheap too!