If you have eczema, you probably know the worst part isn’t just the dry or red skin—it’s the relentless itch. This constant urge to scratch can be overwhelming and is one of the main reasons eczema takes such a toll on daily life.

So, what’s really happening when eczema makes you itch?

Eczema is mainly caused by a weakened skin barrier. Normally, this barrier works like a shield to protect your body from irritants and allergens. When it’s compromised, the skin becomes more sensitive, allowing dryness, inflammation, and itching to take over.

Here’s where things get tricky:

• You scratch to relieve the itch.
• Scratching damages the skin even more.
• The skin barrier weakens further, making it drier and more inflamed.
• This sparks even more itching.

This loop is called the itch-scratch cycle, and once it starts, it can feel impossible to break.

The key to managing eczema is to break the itch-scratch cycle and strengthen the skin barrier. Simple steps like moisturizing regularly, avoiding known triggers, and following your doctor’s advice can make a big difference.

Because strengthening the skin barrier is so important, some people also explore additional support through oral supplementation. Products such as Eczeva are designed to help repair and rebuild skin barrier integrity from within, complementing your daily skincare routine.

Figure 1. Itch- scratch cycle. (Adapted from Kamata et al., 2025).