Our eldest son had extreme excema until he was about 4 years old... with that I mean wet wrapping every night using those creams mentioned (we didn't use steroid creams).. he eventually did grow out of it ... it was exhausting.. however, our younger son had ALLERGY testing.. found he was allergic (NOT 'intolerant') to dairy and nut therefore has absolutely NONE in his diet.. and skin GREAT. I really think our elder son would have benefitted from having allergy testing.. which wasn't available 14 years ago.. The common food irritants tend to be dairy, maybe wheat and DEFINITELY sugar.. You're doing brilliantly using all the right creams.. I went through all the washing powders etc etc but was none the wiser.. could therefore only put it down to diet.. Good Luck.. have a go with the allergy testing.. those years were the most exhausting times so I do wish he gets well soon.