My 18 month old daughter had a reaction this week to peanut butter. We think she has a food allergy and went to the doctor. He prescribed an epi-pen for emergency and told us to restrict feeding her any nuts at all and get a blood test when she turns 3. I still want to go to an allergist and get an opinion from a specialist.
I did some research for first time parents with children with food allergies - here are some great links:
New diagnosis (great web site - Parenting a Child with a Food Allergy)http://www.childfoodallergy.com/archives/new_diagnosis/
Food Allergy & Anaphylaxis Network (FAAN) http://www.foodallergy.org
Kids with Food Allergies http://www.kidswithfoodallergies.org/
MedicAlert Food Allergy Resources http://www.medicalert.org/Main/ResourcesFoodAllergies.aspx
Good luck and I will post as I discover things.
I just learned that Trace Adkins supports FAAN as his child has a food allergy.