I had never seen one until I moved to Texas and was living in an apartment. They even exterminated bi-monthly but that never got rid of them. I kept all food items in tupperware or zip lock bags, even baking soda. I suggest you call and exterminator. There are also the bug bombs. You have to leave your house and set them off and wait, I would usually leave for 24 hours. I did use some of the raid baits. They are small black disks with bait inside them. They helped cut down on them. And the roach hotels. But without more through treatment you might not get rid of all. It may take more than 1-2 treatments timed so after you kill adults then another to get the next generation that hasn't yet hatched. Good luck.