How to prevent allergies?

See an allergist: Find out what you're allergic to exactly, and avoid being around those triggers. An allergist can easily administer an allergy test to help you figure out exactly what you're allergic to so you know what to avoid.

Avoidance: Since the infancy of the science of allergy and immunology, the hallmark of controlling allergies are identification and avoidance whenever possible. Simple but the gold standard!