Hi. Warning, long post on excema - hope it's helpful.
Interested to see all the posting about excema. My eldest had it and we were given all nature of creams by the GP. I finally had enough and went to see a children's skin specialist - Mr Harper at the Portland. It wasn't cheap but worth every penny.
He advised skipping the really thick emolument cream if it was petroleum based. It doesn't let the skin breathe and much of children's excema is caused by overheating. He said do use Hydrocortisone to zap the excema, but make sure you have a strong enough one to really get rid of it over 2-3 days, otherwise you just aren't sorting out the situation.
Bathe in warm, not hot baths, (max 10 mins) using oilatum oil and cream afterwards. I've found a brilliantly thick (water based) cream called diprobase which you can buy or get on prescription. Also, don't use soap in the bath but bog standard aqueous cream.
Hope this helps. My DS1 still has flare ups but it's no way near as bad as it was - he used to be continually itching.
Finally, for chapped facial skin when you can't use HC cream, try Elizabeth Arden's 8 hour cream - really thick and sticky but does the trick!!