Thank you all for your suggestions.

I went to the chemist this afternoon, only to discover that ALL of the eczema bath oil treatments have a mineral oil base. Even QV is paraffin oil based. We haven't used any chemicals on his skin since he was born so I am really hesitant to start now - who knows how he might react

I did manage to find some MooGoo eczema cream that doesn't contain milk protein! So as of his bath (5 minutes ago) we are using olive oil as his bath oil, MooGoo MSM cream to moisturise and then the hydrocortisol (just short term to get it under control) - and when it is less inflamed, the MooGoo eczema cream.

I will be sure to let you know how this works for us

Thanks again for all of your help x