Good news and bad news on this one:
I'll start with the bad:
Chances are that it will never "go away". You may have periods of inactivity, but you will find that warmer weather and harsh chemicals/too much dishwater etc can make it worse... also stress can be a factor.
Good News:
See a dermatologist and this can be managed. I have it between my fingers on both hands. I use a prescription cream called MIMYX. It is a non steroid cream (so no skin thinning) typically used for babies, but I have great results.
General Pointers:
DO NOT scratch! Once you rupture the vesicles (little blisters) they will spread and it will make the second phase (cracked open skin) much worse!
Keep your hands sweat free and dry if possible.
Moisturize!
Try Hydrogen Peroxide...I actually got this off of an online blog that I became a member of because I was beside myself with the agony of the itching.... As soon as you see vesicles, get some regular hydrogen peroxide and pour it on the affected areas (they will bubble turn white and sting).... RUB the vesicles with the peroxide (kind of to break them open)... Keep doing this until the sting subsides (a minute or so) and then rinse with cold water... pat dry and apply you cream. This will help with the itching and will dry up the vesicles so that it heals much faster.
good luck.