There are ummito that round that people with allergies can't eat certain foods, but is myth,
Which will characterize if the person has a food allergy, or drug is the test of igE Specific to each antingeno.
Thus a carrier of the Syndrome of hyper igE can eat pork, seafood, chocolate,milk among others.
Some people however can present allergy to the particular allergen that must be proven by testing blood for igE-specific and not by the Pink Test that has the probability of giving a false negative, ie. Each time repeated, he shows a different reaction.