I have had this terrible skin disorder since a child and have gone through many different meds and home remedies. If your eczema is at the oozing stage soak in oatmeal baths and then follow up with neutrogena sesame seed oil and pat dry. If you are in the scaling stage try rubbing crisco on your skin and wrap plastic wrap around areas and sleep with this on. Try wearing white cotton gloves to bed for you scratch and irritate the areas in your sleep. Use cool water to bathe for hot water irritates these areas. Use a good moisturizing lotion like eucerin and also use cortisone when itching. One thing that works well is tanning regularly but don't overdue it in one session. Make sure you know your allergies and try as hard as you can to stay away from those food items or airborne items that you are allergic too. I use aveeno bath products too and stay away from the perfumed items.
In those children with allergy causing the eczema, they will usually get rashes or more extensive eczema soon after eating a particular food or drinking milk (in the case of babies). If you notice this, remove that food from your child's diet ( if you have a baby, this will need to be done under supervision with an appropriate other formula ). If there is a marked improvement on removal of the suspected food, then the food may have been the cause - cautious reintroduction of the food after 3-4 weeks will enable you to be sure. If on reintroduction of the food, the skin remains clear, the food can continue in the diet. If the skin flares up again, that food needs to be removed from the diet. In those toddlers who do have an allergy to a food causing eczema, a trial of reintroduction can be made in 6 - 12 months time as many children will grow out of these allergies.