Dust Allergy Management and Treatment

Management

To manage a dust allergy, it's best to avoid the things most likely to cause an allergic reaction. Here are some simple steps to reduce exposure to indoor dust:

  • Opt for wood flooring over wall-to-wall carpets when possible, especially in bedrooms.
  • Clean your house regularly, using a central vacuum or a vacuum with a HEPA filter. If you are allergic, wear an N95 filter mask while dusting, sweeping or vacuuming. (It can take more than two hours for the dust to settle after a thorough cleaning—so, if possible, clean when the allergic patient is away, and avoid cleaning the bedroom of an allergic person at night.)
  • Use "mite-proof" cases on your mattresses and pillows. Wash all bed linens regularly, using hot water.
  • Keep a HEPA air cleaner running in the allergic person's bedroom.
  • Keep pets out of the allergic person's bedroom at all times.
  • Keep all unrefrigerated food covered; dispose of food waste in a tightly sealed garbage can.
  • If cockroaches are a known problem, use roach traps and schedule regular visits by a professional pest control service.
  • Install a high-efficiency media filter with a MERV rating of 11 or 12 in the furnace and the air conditioning unit. Leave the fan on to create a "whole house" air filter that removes particulates. Change the filter at least every three months (with the change of the seasons) to keep the air clean year-round. Have your heating and air conditioning units inspected and serviced every six months.
  • Get in the habit of using a hygrometer to measure the humidity in your home; keep the humidity level below 55 percent. If you live in a humid or sticky climate, you may find it helpful to use a dehumidifier. You may use a vent fan for removing moisture in bathrooms and the kitchen. Repairing all water leaks will also help keep moisture away.

Treatment

If you think you may have an allergy to any of the components of house dust, see an allergist. To pinpoint the cause of your symptoms, the allergist will ask detailed questions about your work and home environments, family medical history, frequency and severity of symptoms and exposure to pets and other possible triggers.

Sometimes the medical interview will reveal a likely culprit—for instance, a girl who gets a stuffy nose every time she plays with a friend's cat might have an allergy to cats or to the dust infused with cat hair in her friend's house.

Often an allergist will need to conduct a skin test to determine exactly what is triggering an allergic reaction.

Skin tests involve using a small, sterile probe to prick the skin with extracts from common allergens, such as tree pollen and pet dander, and observing the reaction. A positive reaction (a raised welt with redness around it) may indicate that you are allergic to that substance. Occasionally, your allergist may order a blood test and a skin test to confirm an allergy.

After a dust allergy is identified, your allergist will recommend one or more of the following treatments:

  • Medications
  • Allergy shots (immunotherapy)
  • Changes to your household routine

Medications

If your efforts to reduce exposure to indoor dust don’t provide adequate relief, your allergist may recommend a prescription or over-the-counter medication. Decongestants and antihistamines are the most common allergy medications. They help to reduce a stuffy nose, runny nose, sneezing and itching. Other medications work by preventing the release of the chemicals that cause allergic reactions. Corticosteroid sprays are effective in treating inflammation in your nose. Allergy shots (immunotherapy) work by gradually increasing a person's tolerance to allergy triggers.

An allergist will work with you to determine which medications are best for you and how often and how much of them you should take.


Content was based on American College of Allergy, Asthma & Immunology