See and Allergist If

Your allergies are causing secondary symptoms such as chronic sinus infections
Antihistamines and other over-the-counter medication do not control your allergy symptoms or create unacceptable side effects, such as drowsiness.
Your asthma or allergies are interfering with your ability to carry on day-to-day activities.
Your asthma or allergies decrease the quality of your life.
You have a "cold" that never goes away or recurs at the same time each year.

You sometimes must struggle to catch your breath.
You often wheeze or cough, especially at night or with exercise.
You are frequently short of breath or feel a tightness in your chest.
You have previously been diagnosed with asthma, but despite treatment, you still have frequent acute asthma attacks.
You have been to the emergency room for any allergic reaction.
Immune Deficiency & Related Diseases
You have a dry chronic itchy rash that seems to be triggered by a food or other allergic trigger.
You have chronic or recurrent hives or swelling that is difficult to control.