Problem foods for children can include eggs, milk, peanuts, tree nuts, soy, and wheat. A food allergy can cause: Itching or swelling in your mouth Vomiting, diarrhea, or abdominal cramps and pain ...
A sore throat caused by allergies is common. Postnasal drip, your body's histamine response when exposed to allergens (which causes inflammation), and repeated exposure to breathing in substances ...