starangelk, could it be Alpha Keri Lotion, I had infantile excaema from 6 weeks of age and my mum used to bath me in that.

I would look at cutting out things in your diet, and give it a few weeks before introducing them so they get out of both of your systems, it may be that there is an intollerance to dairy , wheat, eggs or something like that, keeping a food diary will also give you ideas on how things you eat affect DS