You should see an allergist if: Your allergies are causing symptoms such as chronic sinus infections, nasal congestion or difficulty breathing. You experience hay fever or other allergy symptoms several months out of the year.

What happens when you go to an allergist?

When you go to the allergist, they'll talk with you to learn more about when your allergic symptoms are most common. They may also perform a series of tests to identify specific allergens. Testing may include: Blood tests.

What are the benefits of allergy testing?