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Understanding eczema
Audience: patients-public, students-learners ยท Review state: published
What it is
Eczema is a group of conditions that make the skin inflamed, itchy, and dry. The most common type is atopic dermatitis, which often begins in childhood and can continue or start in adulthood.
Eczema is not contagious. It tends to flare and settle in cycles, and many children improve substantially as they grow older.
Symptoms
The hallmark is itching, often intense, with patches of dry, red, or darker skin depending on skin tone. In flares the skin can become cracked, weep fluid, or form small bumps, and repeated scratching thickens it over time.
In babies the face and scalp are common sites; in older children and adults, the creases of the elbows and knees are typical.
Causes and triggers
Eczema involves a combination of genetic factors that weaken the skin barrier and an overactive immune response. A weaker barrier lets moisture out and irritants and allergens in.
Common triggers include dry weather, hot water, harsh soaps, sweat, stress, certain fabrics, and in some people specific allergens or foods. Triggers vary from person to person.
Treatment and skin care
Daily moisturizing with fragrance-free creams or ointments is the foundation of care, repairing the skin barrier and reducing flares. Bathing in lukewarm water and applying moisturizer right after helps lock in moisture.
During flares, doctors often prescribe topical corticosteroids or other anti-inflammatory creams, and sometimes tablets, light therapy, or newer targeted injections for severe disease. Scratching worsens eczema and risks infection, so keeping nails short and treating itch matters. A clinician should guide treatment, especially for children, the face, or infected skin.
Limitations
General educational overview, not medical advice and not a diagnosis. Skin conditions look similar to one another; diagnosis and treatment need a clinician.