What causes eczema?
No one really knows what causes eczema (atopic dermatitis). We do know that certain things can cause eczema to get worse. When eczema gets worse, it is called a flare-up. A flare-up occurs when the immune system in people’s skin overreacts to environmental or emotional triggers. This reaction results in symptoms such as itching.
There are many causes of eczema, but the most common is a general allergic over-sensitivity, called atopy. This sort of eczema is known as atopic eczema, and it is linked with asthma and hay fever. These conditions often run together in a family. Another possible cause of eczema is contact with substances that irritate the skin chemically, called irritant contact dermatitis. This is caused by direct contact between the skin and the substance, which might be adetergent, soap, diesel or engine oil, strong chemical, cleaner, etc.
There are two types of eczema. Atopic eczema is thought to be a hereditary condition. People with atopic eczema are sensitive to allergens in the environment which are harmless to others. In atopic eczema there is an excessive reaction by the immune system. This type of eczema can worsen after eating certain foods or after being exposed to other allergens such as pollen or dust. Atopic eczema can be a long-term condition. Contact dermatitis is the most common form of the condition and is often the result of an allergic reaction after touching something. This type of eczema can be caused by many irritants including feathers, metals, wool, plants and animal hair, soaps and detergents, bubble bath, cosmetics, fabric dyes, etc. It is important to remember many things can cause eczema. Now that you know what is eczema, and what can cause eczema, we can discuss how common it is.
