How can I prevent and get rid of eczema permanently?

I have had it since august and I have been using aveeno to appease it. It works. I still have a little itchy skin but it's not as extreme as it was when it first starts coming. There hasn't been a full week that I haven't been eczema free since I had it. How can I get rid of it permanently and make sure... show more I have had it since august and I have been using aveeno to appease it. It works. I still have a little itchy skin but it's not as extreme as it was when it first starts coming. There hasn't been a full week that I haven't been eczema free since I had it. How can I get rid of it permanently and make sure I never get it again?
Update: I have been to a dermatologist. All they did was prescribe steroid cream
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