Why does atopic dermatitis cause itchy skin?

Atopic Dermatitis affects the outer skin barrier, allowing moisture to escape and everyday irritants to reach deeper layers. Inflammation then releases signals that stimulate nerve endings, producing itch. Scratching may give brief relief, but it can create tiny breaks, add more inflammation and make the nerves more reactive. This is why itch can continue even after the original trigger has gone. It may affect the face, hands, folds or other patches of eczema, and its intensity can vary from day to day.

Moisturise regularly with a fragrance-free cream or ointment, especially after lukewarm washing. Use gentle cleansers, avoid rough fabrics and keep the room from becoming overheated. Press or tap an itchy area instead of rubbing it, and keep nails short. If redness and itch are active, a clinician may prescribe an anti-inflammatory medicine; follow the instructions and do not apply unfamiliar products to broken skin without advice.

Seek a dermatology assessment if itch is persistent, widespread, affecting sleep or causing repeated bleeding. Get prompt medical advice if the area becomes painful, hot, swollen, oozes, develops spreading crusts or is accompanied by fever. Emergency care is needed for breathing difficulty or sudden swelling of the lips, tongue or face.

Ask what is driving your current flare, which moisturiser and anti-inflammatory treatment to use, and how to manage itch when scratching has already broken the skin.