Eczema Treatment Care

based on pictures on the web, apparently my itching is either contact dermatitis or sun-based – although the latter is questionable because i am not often out in the sun and the areas of my itch include covered ones. as to contact dermatitis, i cannot identify what exactly is causing this itch.
i have rashes and scaly plaques already that frequently itch all day despite the lotion. it started in my feet, spread to my hands and now is practically in every part of my body.
i never had this condition before.