Most live in warm, tropical climates, but various species dwell in the offices and homes of humans. To reduce asthma symptoms, it is important to eliminate cockroaches. Block areas where roaches could enter the home, including crevices, wall cracks, windows, woodwork or floor gaps, cellar and outside doors and drains. Cockroaches need water to survive and thrive in high humidity, so make sure to fix and seal all leaky faucets and pipes. You may also want to have a trained exterminator go through the house when your family and pets are gone to eliminate any remaining roaches.
Roaches feel less welcome in a clean, dry house.
To keep them from returning, keep food in tight-lidded containers and put pet food dishes away after they are done eating. Vacuum and sweep the floor after meals, and take out garbage and recyclables frequently. Use lidded garbage containers in the kitchen. Wash dishes immediately after use in hot, soapy water, and clean under stoves, refrigerators or toasters where loose crumbs can accumulate. Wipe off the stove top and clean other kitchen surfaces and cupboards regularly.