Many people wonder, what is eczema and how it affects the skin. Eczema is a chronic skin condition that causes inflammation, dryness, and itchiness. It can occur at any age but is especially common in children. When someone asks what is eczema, the answer usually highlights that it is not contagious but often linked to genetics, allergies, or environmental triggers. Flare-ups may occur on the hands, face, neck, or behind the knees. While there is no permanent cure, treatments and lifestyle adjustments can significantly reduce discomfort and improve skin health.