i have these dark circles too, i have no idea when or where they came from but i cant get rid of them, i think i know the cause of them, i have eczma (which is quite mild these days) and suffer from allergies such as heyfever, also i have a nut allergie that i've had since i was 4, my eyes do get itchy very often and sometimes i do rub them quite uncontrollably until they go red and numb, i realy have no idea what to do to help but i realy need to get rid of them, they are so horrible to look at i have even got to the point where i feel kind of upset and sick looking in the mirror -- please help if you can