From josh: its called X-ZEMA

You must avoid ALL soaps and detergents as they take out moisturiser and make eczema worse.

There are no cures for eczema, only managements. Here are a list of dos and don’ts:

Things not to do:-

Don’t use biological powders
Don’t use fabric softeners
Don’t use soap or detergents to wash with
Don’t use standard shower gels or bath additives

Things to do :-

Try Fairy Snow -the old fashioned powder
Use dryer balls
Use a soap free cleanser to wash hands etc.
Use a moisturising shower gel like Oilatum
Use a moisture bath additive like Aveeno
Use a good moisturiser like Aveeno
Use it very frequently, you can’t over-moisturise!
Use antihistamines for itch, a non sedative one like loratidine in the morning and a sedative one such piriton at night.
You may need to use steroids creams/ointments for flare up areas. Use the mildest you can, for the shortest time possible.

Sorry if you knew all of that already :-(

Learn more at http://www.curemydisorder.com/links/eczema-remedy