Should I remove foods containing colourings and additives from my daughter’s diet?

Unless there is a very strong link with her eczema, i.e. every time
these foods are consumed the eczema becomes worse, we do not
think that this is necessary. Colourings and additives may be
important with some children with another disorder called urticaria
or hives, but the link with eczema is very tenuous. In practice, they
are extremely difficult to avoid as they seem to be added to so many
foods favoured by children. It may be helpful to discuss this further
with a dietitian before embarking on such an exclusion diet.