Additive allergies are becoming more and more common. The most common two allergies are to sulphites and to sodium benzoate. Sulphites are found in or on many foods especially dried fruit. Read all labels and avoid buying any foods containing sulphites. Sodium benzoate is a common preservative for liquids including cold drinks and even some medicines. It is the preservative in many antibiotics and antihistamines.Again read all labels and avoid giving your son anything containing sodium benzoate.
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