Cockroaches are one of the most common and allergenic of indoor pests.

Recent studies have found a strong association between the presence of cockroaches and increases in the severity of asthma symptoms in individuals who are sensitive to cockroach allergens. These pests are common even in the cleanest of crowded urban areas and older dwellings. They are found in all types of neighborhoods.

The proteins found in cockroach saliva are particularly allergenic but the body and droppings of cockroaches also contain allergenic proteins. Limit the spread of food around the house and especially keep food out of bedrooms. Keep food and garbage in closed containers. Never leave food out in the kitchen. Mop the kitchen floor and wash countertops at least once a week. Eliminate water sources that attract these pests, such as leaky faucets and drain pipes. Plug up crevices around the house through which cockroaches can enter. Use bait stations and other environmentally safe pesticides to reduce cockroach infestation