I think hating and fearing roaches is a healthy thing ... *eeeeeeeeeeeeeeeeeeeeew*
son + I lived in a "buggy" (see, I hate to write the WORD!) ... "buggy" apartment when he was little. One thing that helped is "BORAX" and a little bit of sugar mixed in for the bait. I used to put little piles around the kitchen and bath at bedtime. The Borax kills them and best of all, it sticks to the legs and goes to the nest with them to kill more.
(Borax is usually in the laundry detergeant aisle)