What are some precautions i can take to avoid having an allergic reaction?

Become an expert: Become an expert at reading the ingredient labels on foods at the grocery store, and don’t be afraid to ask restaurants specific questions about their dishes. Remember, cooking food in the same pan after another can lead to contamination. Food allergy is serious: the more you know the better you can protect yourself.

See an allergist: The only way to do that is to have skin testing for allergies done. Then, once your allergic sensitivities are known, your allergist can counsel you as to how to avoid having reactions.