Itchy legs? Have seen a dermatologist, nerve damage?

Hi, I'm 20 years old, and I've been experiencing extremely itchy legs for about the past 5 months now, I've been to a dermatologist and they told me to try some different things for ezcema, I've tried they haven't helped. I don't have a rash or anything, so she wants me to see a neurologist, and thinks maybe it's somehow nerve damage, I'm going to my doctor in a few days for a 2nd opinion before I go to the nuerologist, but does anyone have any other ideas of what this may be?

-no rash, I'm on zrytec for my allergies (and my doctor had prescribed an additional antihistamine that didn't help)...I'm also on adderall which I've tried not taking for a few weeks at a time, so it's not that.

-I've tried different ezcema creams, like sarna etc. and they give me mild relief for a few minutes then it goes back to itching. I feel like I'm going crazy. Help! Thanks so much!
Willing to try anything!