The best way to test for allergies is through what is known as skin testing. There are essentially two types of skin tests which doctors and health technicians perform:
In this test, a minute drop of a potential allergen is scratched into the skin and the body’s reaction is closely monitored. This is the most common form of allergy testing.
In this test, a small amount of a potential allergen is injected under the skin using a thin needle. This type of testing is often used to test for allergies to insect stings or penicillin.