It’s easy to confuse eczema and psoriasis, sometimes even for doctors. Both are skin conditions; both can cause itching and patches of red, dry skin; both are chronic; and both tend to be treated in similar ways. Look closely and pay attention, though, and you will start to notice differences. Both psoriasis and eczema (also known as atopic dermatitis) are thought to be caused, at least in part, by the same thing: an immune system that kicks into overdrive and mistakenly attacks your own body. But the precise process is different for each condition.