If you visit Family food center at airport,ask for pesticide for cockroaches on the ground floor.Small round plastic containers of Rec -roc (Egypt made) is available and is highly effective against roaches,but it takes nearly a week to start showing it's deadly effect .I would rate it as very effective,can be hidden in crevices and rather safe for children only if applied in hard to reach areas.
Another product is a GEL made in Germany ,available in the same area as ric roc.Make sure you store this gel in most secure manner as it could be mistaken for toothpaste which could be fatal.
For safety reasons always wear gloves (latex,neoprene,or vinyl) while applying and NEVER touch it by naked hands.
Make sure applied or stored pesticide NEVER comes across any infants or children.