To reduce eczema flare-ups, there are some basic bathing rules you can follow. Use room temperature water in your tub or shower. Hot water can cause eczema flare-ups. Don't scrub your skin. Use a gentle soap alternative instead of soap itself. Pat your skin dry, and liberally apply moisturizer when you are done bathing.
Dust can cause issues. Rather than dry dusting, use a damp dust method instead. This will help capture the dust, rather than simply spreading it around the home. Also, because rugs and carpets are a beacon for dust, try not to have them in the house if at all possible.
Be wary of changes in temperature. A dramatic change in temperature can cause your eczema to flare up. Try to keep your home a temperature that will not aggravate your skin. Be sure to use air conditioning when it is particularly hot out. When it is cold, use a humidifier to keep your skin from drying out.