So I came across a really confusing sentence. The following passage is to provide a bigger context, but what I don't understand is just the first one:
Control was something Ruth wanted very badly, yet eczema defied her attempts to eradicate it. The Jewish mythological figure Lilith, known as the ‘night hag’, was very powerful in her; ‘erupting’ when she felt controlled. This archetype had played out in every aspect of Ruth’s life, and she was only now beginning to see how it had influenced her: she’d had no trouble finding jobs, friends, boyfriends, but then felt controlled by them, and turned destructively against them.
To help understand more about the context -- there are four pillars in Ruth's life, Zionism, feminism, socialism and Judaism. I kind of feel that religion plays a part in interpreting the sentence.
To specify my question, I simply don't understand what is eczema to do with anything in the sentence (isn't eczema a skin disease?) and I am not sure about what the "it" refers to too... Control? Eczema? Or something else?
Maybe eczema is just a metaphor? I notice that "erupt" can also mean "(of a spot, rash, or other mark) suddenly appear on the skin." But how can I interpret the metaphor (if it is one)?