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Environmental Control for Indoor Allergens

Environmental Control for Indoor Allergens

House dust contains a variety of allergens such as insect parts, animal dander, and dust mites. Furthermore, mold may also be present in homes. It is important to eliminate as much allergen as possible from the home in order to derive maximum benefit from your treatment.

House Dust Mite is probably the most important allergen in most homes. Controlling house dust mite exposure will decrease symptoms in allergic patients and may decrease the risk of developing dust mite allergy in patients not yet sensitized. Dust mites are tiny microscopic creatures that thrive in warm, moist climates. Upholstery (particularly the bed) is the ideal habitat for dust mites because they need the protection of the padding and a food supply (shed human skin) to survive. They cannot thrive on non-porous surfaces or in cool dry climates.

There are simple things you can do to minimize dust mite exposure:

  • You should concentrate on the bedroom (particularly the bed) because this is where you spend most of your time. In fact, when you are sleeping, you are breathing with your mouth and nose inches from a whole army of dust mites. The bedroom should be clutter free.
  • Dusting should be done frequently with a damp cloth.
  • The humidity in the bedroom should be kept below 50%. In Central Oklahoma this generally requires only air condition, but may require a de-humidifier. Humidifiers encourage dust mite and mold growth and should be avoided.
  • The mattress, box spring and pillow should be encased in dust mite proof encasements. All items on the bed should be washed in hot water (140 degrees) every one to two weeks. Stuffed animals should be removed from the bed.
  • Upholstered furniture and wall to wall carpet contain dust mites and should be avoided if possible, but these are not nearly as important as the bed.
  • Air filters, expensive vacuum cleaners, and duct cleaning help only minimally. When vacuuming, a HEPA filter or double bag should be used to minimize dust mites being stirred up and released into the air.

Cockroaches are now recognized as important indoor allergens. Other insects such as lady bugs, spiders, and crickets have recently been implicated. Keep the home clean and dry and fix any leaks or drips. It may be necessary to have an exterminator treat the home periodically.

Animal dander, generally from cats and dogs (but sometimes from gerbils, hamster, guinea pigs, mice, etc.) is a very important source of allergen in dust. Contrary to popular belief, animal hair is not the problem. Rather, it is a protein in the urine, saliva and dander of animal that provokes allergy. There are no “nonallergenic” furred pets. Some individual animals produce more allergen than others but there are no “safe” breeds.

  • The best thing you can do if you are allergic is to eliminate the pet.
  • Keeping the animal outside is only a partial solution because people who handle the animals outside will bring the allergen in on their clothes.
  • If you cannot eliminate the pet, try to keep the pet in non-upholstered areas and never let the pet in the bedroom. A HEPA filter in the bedroom may provide some protection.
  • Bathing the animals weekly may decrease the amount of allergen they produce.
  • After the animal has been removed, it can take as long as a year for allergen levels in the home to drop significantly, so a good thorough cleaning of the home is necessary after eliminating the animal.

Recently some information has come to light which suggests that if you are not already allergic it may actually be helpful to have cats or dogs in the home. However, if you are already pet allergic having the pets around will only worsen your allergic symptoms.

Indoor Mold can also cause significant allergic respiratory symptoms. Homes with high humidity and/or leaks have a high likelihood of having significant indoor molds. Once these issues have been fixed, it is generally easy to eliminate molds, but if you continue to have problems with water leaks or high humidity, you will have a hard time cleaning up your mold. Use a cleaning solution containing 5% bleach and a small amount of detergent to clean up moldy areas. Performing house dust control measures will help as well.

Recent News

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OKC ranked 6th most challenging city in the U.S. for pollen allergies

The Asthma and Allergy Foundation of America (AAFA) released its annual Allergy Capitals™ report for 2022 on March 2. The report identifies the most challenging cities for spring and fall allergies in the top 100 metropolitan areas in the continental United States. Cities are ranked based on spring and fall pollen scores, over-the-counter medicine use, and availability of board-certified allergists/immunologists. Oklahoma City was ranked sixth most challenging city and Tulsa ranked 21st.

For the second year in a row, Scranton, Pennsylvania, takes the top spot based on its high spring and fall pollen scores and lower-than-average number of allergy/immunology specialists per patient. The top 20 Allergy Capitals™ for 2022 are: 1. Scranton, PA 2. Wichita, KS 3. McAllen, TX 4. Richmond, VA 5. San Antonio, TX 6. Oklahoma City, OK 7. Hartford, CT 8. Buffalo, NY 9. New Haven, CT 10. Albany, NY.

AAFA began identifying annual Allergy Capitals™ in 2003. Since that first report, seasonal allergies have worsened. Climate change has caused the growing seasons to get longer and warmer, leading to higher pollen counts in both spring and fall. The warmer temperatures also get trapped in urban areas, which impacts air pollution. Urban areas are also often designed to have wind-pollinating trees instead of fruiting (or insect-pollinating) trees.

“Climate change is a public health emergency. More than 24 million people in the U.S. have seasonal allergic rhinitis which is most often caused by pollen allergies,” says Kenneth Mendez, CEO and president of AAFA. “If we don’t slow down the warming temperatures, pollen production will only intensify. This means symptoms could worsen as climate change continues to evolve.”

Allergies can also trigger asthma episodes or attacks. Around 60-80 percent of the 25 million people in the U.S. with asthma have allergic asthma.

“We see spikes in emergency room visits that coincide with spikes in pollen seasons,” said Mendez. “Around 3,600 people per year die from asthma, so it is important to address and manage asthma and allergy triggers where you live.”

Black, Hispanic, and Indigenous populations bear the disproportionate burden of air pollution, asthma, allergies, and climate change. This is the result of long history of housing policies in the U.S. that discriminate against these groups. These policies have pushed people of color to live in undesirable neighborhoods with greater environmental and social risks. As a result of systemic racism in U.S. policies, governance, and culture, racial and ethnic minority populations are more vulnerable to the health impacts of climate change.

“AAFA’s Allergy Capitals™ report helps raise awareness of the impact of pollen and climate change on individual and community health,” says Melanie Carver, chief mission officer of AAFA. “While there are steps individuals can take to manage their allergies, we need communities to improve their city planning and take action on health disparities impacting higher risk populations.”

For people who are impacted by pollen allergies, there are options available to prevent or treat allergy symptoms.

A board-certified allergist can diagnose allergies, and determine the specific triggers that cause them, through simple tests. The allergists at Oklahoma Allergy & Asthma Clinic (OAAC) evaluate and manage patients of all ages.  The main clinic is on the Oklahoma Health Center campus.  For patient convenience, satellite offices are in Edmond, Norman, Midwest City and Yukon.

The post OKC ranked 6th most challenging city in the U.S. for pollen allergies appeared first on Oklahoma Allergy and Asthma Clinic.

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