Eczema affects the skin, causing redness, itching, and sometimes infections. When eczema worsens it is called an eczema flare. Usually there is no single factor for an eczema flare.
Why some people develop eczema is not well understood. It is common for people with eczema to have other allergies. This suggests that inherited (genetic) factors increase the tendency to develop eczema.
In people with eczema the skin does not retain moisture very well, which causes it to dry out easily. This makes the skin more open to allergens and irritants. These can trigger the skin to release chemicals that make the skin itchy. Scratching itchy skin causes more chemicals to be released, making the skin feel itchier. This scratch and itch cycle can cause discomfort, disrupt sleep and affect quality of life.
It is therefore important to keep skin that is prone to eczema well hydrated, by moisturising the skin every day.
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