If it's specific areas of his head, has he recently got a new hat? that might be different fabric? Also, with things like soap and shampoo, there is the possibility of becoming sensitized, in the sense that something that didn't used to cause a problem is now more of an issue after a few years of exposure. So an experiment may be worthwhile. We don't use soap on DS other than on his hands and bum - just water. It seems to do the trick anyway. DS is set off by sorbolene and dermeez, but OK with moogoo. We try and cover him up as much as possible to minimize sunscreen (so long cotton pants and long sleeved lightweight shirts).

And as far as the bandaids are concerned, have you tried cutifilm (from pharmacists) - it's expensive, but no reactions to it from either me or DS. Personally I find the rough edge of bandaids is what sets us off (as it seems to abrade the neighboring skin). The cutifilm is much thinner and softer, so less of an issue.

pimecromelis is available on special order prescription for eczema on the faces of kids - DS has it. It's very expensive, so keep it in the fridge do you don't have to throw it out 3 months after opening the tube!

My DS has very mild eczema - but when it flares he will scratch holes in himself like nothing on earth - and will use his toenails as much as his fingers!