When I was a baby, I had terrible rashes all over my skin and would itch constantly. I would not keep food down, so when I was around 6 months old I had gotten allergy tested. My blood test showed up with dairy, wheat/gluten, chicken, turkey, egg, shellfish, peanut, tree nut, oat, barley, pea. I have single grown out of a few allergens, but I still have a majority of them.
A lot of the information that my mom and dad used was from FARE and some different books.