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Dust Allergies: Symptoms, Causes, Treatments

    Dust Allergy


    Dust allergies also make it difficult to breathe and may trigger asthma symptoms, such as wheezing, coughing, tightness in the chest and shortness of breath.Dust also just makes some people itchy.People with dust allergies often suffer the most inside their own homes or in other people’s homes. Oddly enough, their symptoms often worsen during or immediately after vacuuming, sweeping and dusting. The process of cleaning can stir up dust particles, making them easier to inhale.

    Dust Allergy Symptoms

    • Sneezing
    • Runny or stuffy nose
    • Red, itchy or teary eyes
    • Wheezing, coughing, tightness in the chest and shortness of breath
    • Itching

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    Dust Allergy Triggers

    Dust Allergy Management and Treatment

    Make changes to your home and to your behavior.

    • Remove wall-to-wall carpets, particularly in the bedroom.
    • Keep pets out of the bedroom, and preferably out of the house.
    • Minimize household humidity.
    • Use “mite-proof” cases on mattresses and pillows; wash bed linens frequently in hot water.
    • Install a high-efficiency media filter in your furnace and air conditioning unit.

    Dust Allergy Triggers

    Dust mites

    Dust mite particles are often found in pillows, mattresses, carpeting and upholstered furniture. They float into the air when anyone vacuums, walks on a carpet or disturbs bedding and they settle once the disturbance is over.Dust mites are a common cause of asthma in children.

    A house does not need to be visibly dirty to trigger a dust mite allergy reaction. The particles are too tiny to be seen and often cannot be removed using normal cleaning procedures. In fact, a vigorous cleaning can make an allergic person’s symptoms worse.


    Cockroaches live in all types of buildings and neighborhoods. Some people develop allergy symptoms when they are around cockroaches. Tiny particles from the cockroach are a common component of household dust and may be the true cause of a dust allergy.


    Mold is a fungus that makes spores that float in the air. When people with a mold allergy inhale the spores, they get allergy symptoms. There are many different kinds of mold—some kinds you can see, others you can’t.

    Molds live everywhere—on logs and on fallen leaves, and in moist places like bathrooms and kitchens. Tiny mold particles and spores are a common component of household dust and may be the true cause of a dust allergy.


    Pollen comes from trees, grasses, flowers and weeds. People can be allergic to different types of pollen. For instance, some people are allergic to pollen from only beech trees; others are allergic to pollen from only certain kinds of grasses. Pollen is a common component of household dust and may be the true cause of a dust allergy.

    Animal hair, fur and feathers

    Pets can cause problems for allergic patients in several ways. Their dander (skin flakes), saliva and urine can cause an allergic reaction, especially when combined with household dust. In households with birds, feathers and bird droppings can also become embedded in household dust and cause problems for people who are allergic to them.

    Dust Allergy 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

    Dust Allergy 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.

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