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Allergen Avoidance

Environmental Allergen ControlAllergen avoidance is an essential part in trying to control your allergy symptoms. In the home there are a number of simple steps one can take to effectively limit your exposure to allergy and asthma triggers and thus control your allergy and asthma symptoms. The Academy of Asthma, Allergy and Immunology issued the recommendation that all patients with chronic allergic asthma be advised on allergen avoidance (also called environmental allergen control), as part of their allergy and asthma management plan.

FAQ about Allergy Avoidance:

Assessment of allergic status
How to practice allergen avoidance
Primary allergen and secondary allergen
Practicing allergen avoidance - what to look out for
Dust mite allergens
Animal allergens
Mould allergens

 

Assessment of allergic status

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To effectively practice allergen avoidance, it is essential to determine your 'allergic status'. That is, you have to identify if you are really having allergies and what specific allergens are involved. A personal, or family, history of eczema, rhinitis or food allergy is one classic indicator. Another is a history of increased symptoms during the pollen seasons, or during exposure to pets, house cleaning or damp musty environments. If you suffer with asthma can be confirmed with a skin or blood allergy test for antibodies to specific allergens. Allergy tests should always be used in conjunction with a medical history to give the diagnosis. A number of studies have linked sensitisation to common indoor allergens to the development and severity of asthma, the most common of which are: house dust mite, pet, cockroaches and mould.

How to practice allergen avoidance

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    • Identify what you are allergic to

The first step in practicing allergen avoidance is to identify what you are allergic to. One way to conduct this is to have an allergy test.There are three different types of allergy tests; skin, blood and a patch test. Your GP or allergy specialist will ask you about your symptoms and habits to identify what triggers your allergy.

    • Educate yourself how to eradicate these allergens

The second step in managing allergy and asthma symptoms is to educate yourself on how you can best avoid being exposed to the allergens that trigger your allergy and asthma symptoms in the first place.

"If patients understand the role that specific allergens play in causing symptoms, then they can gain control of their illness, reduce symptoms and in many cases reduce reliance on pharmaceutical products." Thomas A.E. Platts-Mills, former President of the American Academy of Allergy, Asthma, and Immunology.

One way of educating yourself is seeking advice from your local GP or allergy specialist. The internet is also a good way to conduct research at your own convenience. However, not everything on the internet is true and reliable, so you will need to be wary of certain pages and blogs. Especially when it comes to allergy and asthma remedies, many people tent to share their own experiences, however, this may not relate to yourself due to the nature of your allergy, lifestyle, habit and diet.

    • Establish a habit on practicing allergen avoidance on a daily basis

Once you have identified what you are allergic to - taking the right measures to reduce and control your allergy symptoms it is important to make this a habit and practice it on a daily basis. Applying the right changes to your lifestyle, diet and habit will help control your allergy symptoms.

Primary allergen and secondary allergen

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Most people are not allergic to one thing but a range of allergens, consisting of primary and secondary allergens both natural and manmade. If the primary allergen can be controlled then all other allergens can be controlled too. But, if the secondary allergen is not controlled then they all will be out of control.

Practicing allergen avoidance - what to look out for

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Patients who have allergies, are at risk, or who have a child with an allergy need, above all else, education on how to avoid exposure. They do not, in the main, want to become dependent on medication although this certainly has a role to play. 

The two key criteria to keep in mind when practicing allergen avoidance are:

    • the avoidance measure must be allergen specific
    • the average exposure to the relevant allergen must be decreased by 95% or more.

Dr Platts-Mills furthermore offers the following points as a take-home message:

    • Allergen avoidance is the cornerstone of treatment for those with rhinitis, asthma or atopic dermatitis.
    • Successful treatment requires correct diagnosis (skin or blood tests), education and an overall exposure reduction plan.
    • The patient must always be involved.
    • The relevance of other allergens should be understood.
    • Exposure outside the home should be taken into consideration. 


Dust mite allergens

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Specific proteins in house dust mite droppings and bodies have been shown to trigger perennial allergic rhinitis and allergic asthma symptoms, and thus are an important part to consider in practicing environmental allergen control. These proteins can be quantitated in dust samples by laboratory assays and it is known that mite allergen levels above 2 micrograms per gram of dust are a risk factor for sensitisation.

House dust mites colonise soft furnishings, soft toys and beddings. The allergens themselves are carried on particles that become airborne. Heaviest exposure occurs from bedding when the patient lies down. Fortunately, there has been a great deal of research into environmental allergen control and house dust mite allergens and we therefore know of avoidance measures that will improve symptoms. Here is a checklist of worthwhile recommendations that are a key part in environmental allergen control for house dust mites:

For the bedroom:

    • Use allergy friendly bedding
    • Wash bedding every week with allergen wash laundry detergent
    • Remove stuffed animals and toys from the bed
    • Use an ionising or HEPA air purifier


For the bed:

    • Vacuum weekly
    • Use X-Mite Dust Mite Powder to clean the mattress and carpets
    • Ensure that your vacuum is leakage free and has a High-Efficiency Particulate Air (HEPA) filter on its air outlet and double thickness bags


Changes that are harder to implement include:

    • Reducing indoor humidity
    • Replacing carpet with polished wood flooring
    • Replacing upholstered furniture with leather, vinyl or wood
    • Replacing curtains with washable shades or blinds
    • Avoid living in basements

Animal allergens

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Cats, dogs, rats, mice, horses and cows all produce allergens that can cause acute and chronic allergic symptoms. The following allergen avoidance control measures have been shown to be effective:

Mould allergens

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Sensitivity to mould spores is common among people suffering with allergy and asthma. Mostly exposure to mould allergens occurs outdoors, although many species can invade the home through open cracks or windows. Less is known about sources of allergen exposure with mould than for house dust mite, animals and cockroaches. Allergen avoidance measures worth pursuing include:

    • Close doors, windows and use air purification
    • Control moisture by dehumidification, sealing water leaks, ventilating kitchens and bathrooms
    • Clean and remove contaminated material by using an allergy friendly mould spray
    • Use HEPA air purifiers to remove spores
    • Maintain ventilation and air conditioning systems
    • Use personal protective equipment when removing contaminated materials


In conclusion, most patients with allergic asthma are actually sensitive to multiple allergens. This may involve changing many aspects of their home environment, as listed above, which can be confusing and burdensome. However these changes can dramatically help a person suffering with allergy and make their life a lot easier.

Related Products:

Air PurifiersMiele C3 HEPA PowerLineIQAir HealthPro 250Allergen Wash Detergent

Allergen Avoidance Articles

Allergists Recommend Environmental Control

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Environmental Control Environmental control (EC), also known as allergy avoidance, is a powerful tool in the management of allergy. But, for environmental control to be successful, people with allergies must know what measures to take. In a letter to the Journal of Allergy and Clinical Immunology a group of allergy specialists in the United States reported on a survey on attitudes towards environmental control revealed by a survey sent to members of the American Academy of Asthma, Allergy and Immunology.

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Shopping List for Allergen Avoidance

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shopping list for allergen avoidance If you suffer with asthma or another allergy, there is a wide range of different products that can help practice allergy avoidance. So we have put together a shopping list for allergen avoidance for you.

Paint. If you are sensitive to Volatile Organic Compounds (VOCs), then you need to shop for paint with care. Water-based paint, used for walls, and oil-based paint, used more for woodwork, can both contain high concentrations of VOCs which will continue to outgas once the paint has dried.

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Top Tips for Allergen Avoidance

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top tips for allergen avoidance If you have asthma or some other allergy, then allergen avoidance has to be your top priority. Allergen avoidance can help you gain control, reduce symptoms and reduce your reliance on medication. But how do you go about limiting your exposure to every day allergens? What is practical and realistic? Dr. Thomas Platt-Mills, of the Asthma and Allergic Diseases Center and the University of Virginia Medical Center provides some excellent advice on how to best avoid house dust mite, cat and insect allergens.

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Time for Allergy Spring Cleaning

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allergy spring cleaning TThe pollen season is in full bloom and for some of you, thoughts are turning to home improvements and spring cleaning! A few days is all you need to start allergy-proofing your home and deal with any indoor air quality issues that can affect your family's allergy symptoms. To practice the best allergy spring cleaning, we've come up with a few ideas in the area of dusting, carpets and paint/VOCs.

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Steam Cleaning your Carpet to Reduce Allergies

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steam cleaning your carpet to reduce allergies One month ago we moved into a new flat. The flat was beautiful but the carpet in it was dirty, stained and had this musty smell. It looked like it was about 10 years old and had been used by many different tenants. It didn't take me long to decide to steam clean the carpet, and I am so happy I did.

Did you know that if you have a carpet at home, it is most likely inhabited by millions of dust mites? Did you also know that living with dust mites can cause you to develop allergies and even asthma and will increase the allergy and asthma symptoms you already have?

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