Why do people get allergies?
Updated On: Aug 15 2012 02:14:49 PM EDT
People are said to have allergies when their bodies have a negative reaction to a foreign substance.
According to the Mayo Clinic, antibodies protect us from unwanted bacteria that could cause infection. When a person has allergies, their antibodies are reacting to a substance that it thinks is harmful, even when it isn’t.
Some common allergens are foods (like peanuts, shellfish, and dairy products), medications and insect stings.