Genetics - If eczema runs in your family, it is more likely that it will also pass down to you.

A weak skin barrier - The skin acts as a wall that keeps the moisture locked in and the dust out. If you have a weak skin barrier, then this “wall” is broken, letting the moisture out and all the dust and bacteria in.

Immune system reaction - If your skin is exposed to dust, bacteria, etc., then your immune system will start to react and cause itchiness, redness, inflammation, and rashes.