Try convincing your son to eat yogurt 3x per day.
Go to PubMed,
AND put exactly what is in the line below:
probiotics AND (eczema OR atopy)
and you will see 31 articles recommending probiotics for treatment (the organisms in yogurt). For pregnant or lactating moms--take probiotics 2-3x per day to prevent asthma and atopic illness in your baby.
You can also put the contents of a probiotic capsule in a cup full of milk and your son will never notice.
Also check out the article by U.N. Das (#17 on the search) that will come up on the search about fatty acids.
In the white box that says "summary", select the corresponding arrow and click on "abstract" then hit the gray "display" button to the left of "abstract" and you'll see little summaries of each article. That ought to be enough information to start with.
I did a masters thesis on probiotics and I've had a dramatic increase in health personally both by eating probiotics and omega 3 fatty acids.
Sandy Summers, RN, MSN, MPH