Consider getting rid of your carpets and throw rugs throughout your house. Carpet and rugs are known for harboring dust mites, allergens and other microscopic irritants which can cause an eczema flair-up. So consider hardwood floors or a low pile carpet if you absolutely must have carpet in your house.
If you have eczema occasionally, an outbreak may be related to other things that cause allergies. Avoid using strong household chemicals as much as possible, as well as perfumed laundry products. Take care to notice if any type of pattern develops that may associate an outbreak with any of these products.
You may already know to change your sheets frequently but have you considered your curtains? Your curtains can attract a great amount of dust over time and that dust is released in the air whenever you open and close them. So you should wash them frequently or invest in some that are easier for you to wash.