Hi Melody.

Lots of child care centres and schools here are peanut free zones.
If he's in school it's really important that his school is notified esp. of the peanut issue.

If he's allergic to honey and beeswax does that make him at risk if he gets a bee sting?

I'm in a different country so can't really help with brands or celebs (although it may be someone like Gwyneth Paltrow?) diets etc., but there is this neat little pdf regarding peanut allergies that might be of use.

http://www.allergyfacts.org.au/images/PDF/peanut.pdf
that's from an Aussie site.
Allergy & Anaphylaxis Australia
There are some other brief tips on that page too.

p.s. and be aware that many shops that sell meat products will be contaminated... often because of coatings made with peanuts or things like satay marinades etc..