Keep the house clean Dust mites, pollens, animal dander, and other allergy symptom triggers can be reduced, although not eliminated through regular cleaning.

Use a HEPA vacuum cleaner once a week. A high efficiency particulate arresting (HEPA) vacuum cleaner is recommended because it is much better than ordinary vacuums at trapping very small allergen particles.

Wash pillow cases and sheets once a week. Dust mites can be killed by water at 130°F (55°C) or hotter. Use non-allergenic detergent to help remove dust-mite allergens. They can also be killed by freezing.

Keep relative humidity levels below 50 percent. Dust mites as well as other allergens thrive on high humidity. Homes with air conditioning constantly have lower mite counts then non-air conditioned homes.

Use a high efficiency air filter. Most of the cheap ordinary air filters an not capable of trapping mites and their by-products. One should also look for a filter that has anti-microbial properties, to prevent the filter from becoming a breeding ground for allergens. Filters that call themselves "washable" should be avoided because it just is not possible to wash 100% of the biological contaminants out of them and they can also become a breeding ground for microbes.

Use an allergen barrier pillow case. They creep, they crawl, they trigger allergies while you sleep. Dust mites are the leading source of allergens in the home, and their prime breeding ground is right under your nose. These microscopic, indoor inhabitants have set up camp in your pillow, the warm and humid environment where you spend one-third of your life.