My 18 month old has broken out (not hives, but rash) after eating the pre-packaged crackers with peanut butter in them. (Both the bright orange crackers and the wheat crackers). However, she has eaten plain peanuts a couple times, and once was given Skippy peanut butter and did not have a rash. What type of allergy/irration do you think this is? I'm confused at what causes her rash.