It’s common knowledge that eczema can cause red, itchy patches on the skin. But if you’re one of the more than 30 million Americans who live with eczema, you may find it helpful to have a more in-depth knowledge about the condition. Being well-informed can empower you to take an active role in managing your health. In turn, you may find that it’s easier for you to prevent uncomfortable flare-ups.

So, how well do you know your eczema? Take the following self-assessment to find out.