Eczema Treatment Care

I’ve had Atopic Dermatitis (some form of Eczema?) for a few years now and it’s really hurting my self-esteem, but my mom refuses to take me to a dermatologist and learn more about it and how to treat it. So..
I read in a lot of places that Atopic Dermatitis has no cure. Is this true? If it gets treated, is it at least not visible on the skin?
Is there a certain specific product that I should look into about treating this? How long will it take?
If I treat it, will I have to continue buying and using that product or can I keep it away by precautions in diet, moisturization, etc. etc. ?
Sorry about all the questions, but I’m really bad at using the internet and I don’t know anyone with this condition. Thanks in advance for your answers.