House dust allergy


Martina Feichter

Martina Feichter studied biology in Innsbruck with an optional subject in pharmacy and also immersed herself in the world of medicinal plants. From there it was not far to other medical topics that still captivate her today. She trained as a journalist at the Axel Springer Academy in Hamburg and has been working for lifelikeinc.com since 2007 - first as an editor and since 2012 as a freelance author.

More about the lifelikeinc.com experts at the House dust allergy (Dust mite allergy), the immune system is hypersensitive to certain substances in the feces of dust mites. It comes to symptoms such as watery, itchy eyes, runny nose, cough and skin reactions. In the worst case, a house dust allergy causes respiratory distress and allergic asthma. Read all important information about causes, diagnosis and treatment of house dust allergy!

ICD codes for this disease: ICD codes are internationally valid medical diagnosis codes. They are found e.g. in medical reports or on incapacity certificates. J45J30ArtikelübersichtHausstauballergie

  • Quick Overview
  • Recognize symptoms
  • Causes & triggers
  • treatment
  • Prevention & Tips
  • History & Forecast
  • Examinations and diagnosis

Quick Overview

  • What is a house dust allergy? Hypersensitivity of the body to certain proteins of house dust mites. Correctly it is therefore called house dust mite allergy. Colloquially, the disease is also called dust allergy and mite allergy. It usually develops in childhood and adolescence and usually lasts for life.
  • symptoms: reddened, itchy and watery eyes, stuffy nose and runny nose, possibly sneezing, allergic skin reactions (itching, rash, hives), sometimes coughing with mucilage or further development to allergic asthma with acute respiratory distress

  • Treatment: Reduce mite burden in your own home (special mattress covers, no carpets, etc.), medicines for allergy symptoms, hyposensitization

  • Frequency: In industrialized countries, about one in four suffers from an allergic rhinitis, for example due to house dust mites or pollen. Experts estimate that around seven percent of the population in Germany has a house-dust allergy.
  • Forecast: With consistent treatment, the symptoms can be reduced or completely eliminated. Over time, allergic asthma can develop from a house dust allergy (level change). In addition, some house dust allergy sufferers also hypersensitive to crustaceans such as shrimp (cross allergy).
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House dust allergy: symptoms

The house dust allergy symptoms are caused by the messenger substance histamine set in motion. This is released by the contact with the allergen trigger - certain proteins of dust mites - in large quantities: it swells the mucous membranes, dilates the blood vessels, stimulates the mucus production and is involved in inflammatory processes. As a result, the various house dust allergy symptoms develop in the eyes, noses, respiratory tract and skin:

  • Reddened, itchy and watery eyes are typical symptoms of house dust allergy. The allergen contact triggers a conjunctivitis (allergic conjunctivitis).
  • Often that is clogged nosebecause the mucous membranes swell and secretions are produced more. But it can too runny nose occur. sneezing is also possible.
  • The house dust allergy can too clogged cough (Bronchitis) and even to one allergic asthma with acute respiratory distress to lead.
  • On the skin can be a house dust allergy symptoms like Itching, rash and hives cause. In hives (urticaria) wheals develop on the skin, so small, red swellings.

Because the house dust allergy symptoms occur very quickly after contact of the mucous membranes with the allergen, the disease is one of the Allergies of immediate type (type I).

All symptoms of a house dust allergy can also be seen in other allergies and other diseases. For example, runny nose and cough can be misinterpreted as signs of a common cold. Therefore, a house dust allergy is often recognized late or not at all.

When do the house dust allergy symptoms appear?

House dust allergy symptoms occur all year because dust mites live permanently in apartments. In late autumn and in winter, the complaints are usually particularly pronounced. The small arachnids multiply mainly between May and October. When the heating is switched on in late autumn and the humidity in the rooms falls, the mites die in large numbers (they need a wetter environment). The dead mites and their excreted feces disintegrate, mix with the house dust and can then be easily inhaled with the air. As a result, house dust allergy symptoms are more common in these months than in the rest of the year - especially if they are also rarely ventilated (as is often the case in winter).

During the day, the house dust allergy symptoms especially at night or in the morning noticeable after getting up. Mattresses are the largest mite reservoir.

The house dust mixed with dead mites and mite feces is easily whirled up during activities such as making beds, dusting and vacuuming and then inhaled. The house dust mite allergy symptoms are therefore evident at the daily housework often especially strong.

cross allergy

The mite proteins, which cause a house dust mite allergy, are similar to proteins in crustaceans. Therefore, some house dust allergy sufferers also hypersensitive to, for example, shrimp, crayfish and lobster - the consumption of these animal foods can thus trigger allergy symptoms in those affected. Physicians speak in such a case of cross-allergy.