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Eczema - Causes

In most cases, people may show abnormal function in their immune system, where their body responds abnormally to external allergens, which does not harm people with a good immune system.

Some of the causes of eczema include the following:

  • environmental allergens: house dust, sand, pollen, smoke, moulds, animal dander, etc.;.
  • dietary allergens: milk and milk products, fish, soy, eggs, peanuts, etc.;
  • contact with irritant substances such as soaps, cleaning products, detergents, cosmetics, perfumes, certain forms of clothing, rubber, jewellery, watches, metals such as nickel, etc.;
  • genetic factor an important cause in the development of eczema. Patients with eczema have commonly reported a family history of allergies, asthma, hay fever or other forms of allergic diseases;
  • psychological stress, a major cause in several patients; however, its correlation with triggering altered immune response remains unclear;
  • alteration in temperature and humidity;
  • dry climate and very cold temperature;
  • abnormal blood circulation, especially in the legs, that further causes stasis dermatitis; and
  • unknown factors that trigger certain forms of dermatitis, such as seborrhoeic dermatitis, atopic dermatitis, etc.