Eczema is ruining my life?

I had loads of Eczema when I was younger but I somehow managed to get rid of it, I'm now 14 and it has come back, I have really bad eczema on my arms, legs, thighs, the back of my neck and I sometimes get itchy on other random parts as well. I have tried loads of different creams (even one my doctor recommended) but none of them seem to work, they actually make it worse! I am having a house party on the 24th and all my friends are wearing dresses or shorts and im so embarrassed that my legs and arms will look horrible. Is there any natural remedies that actually work? I have heared that apple cider vinegar is good? I also heared that mixing milk, water and oats to make a paste and putting that on your skin helps, i just tried it and i have not been that itchy yet but I might just be getting my hopes up. A guy I really like is coming to this party aswell so I want to look nice.. is there anything I can do? Natural remedies please!!