Pick moisturizers which come in cream or ointment form. These are superior to lotions. You could even soften your skin with petroleum jelly. Make sure whatever you use is alcohol and fragrance free. Work on using moisturizer no less than twice daily.
Understand what makes your eczema act up. It could be that there is a certain type of soap that gets you every time, for example. In most cases, you do not want to use anything that has a scent attached to it. That means it may be necessary to avoid perfume, some body lotions and even certain types of make-up.