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Professional Food Intolerance Testing in Crystal Lake, IL

Oral Ingestion Challenges in Crystal Lake, IL

Determining the cause of common food allergy symptoms can be more complicated than common allergies. Because we ingest various foods and drinks every day, determining our symptoms’ precise cause can be difficult. Luckily, there is a scientific solution.

The physicians at Advanced Allergy & Asthma Associates and Food Allergy Center of Illinois specialize in food allergy testing, using various approaches to isolate the specific ingredient that may be causing your symptoms. They then develop a treatment plan to help avoid it altogether or treat symptoms as they occur.

What to Expect from Your Allergy Test

Skin testing is an extremely accurate method of determining which allergens are causing your symptoms, and it can be useful in most cases. However, certain situations can yield inconclusive results. If the results are uncertain, we may consider an oral ingestion challenge to help clarify your skin test results. 

Your safety and comfort is the top priority, and we will only use this method in particular situations and under close observation. We will consult your medical history and the severity of your symptoms when determining if this course may be safe and effective for you. We’ll review the benefits and potential risks of this test before administering it, making sure you are comfortable and confident in your care every step of the way.

Suppose an oral ingestion challenge is right for you. The procedure will take place under close supervision at the Advanced Allergy & Asthma Associates and Food Allergy Center of Illinois office in either Clear Lake or Elgin. You’ll ingest a small amount of a suspected allergen and remain under observation. If you have no reaction, you may consume a larger volume of the allergen. This routine is repeated every 20 minutes until a symptom occurs or you’ve reached a predetermined quantity of the material.

Using a progressive approach, we reduce any potential discomfort and observe any minor reaction before symptoms become more severe. 

If you have a food allergy, or suspect you may have one, schedule an appointment for a consultation at the Elgin or Clear Lake locations of Advanced Allergy & Asthma Associates/Food Allergy Center of Illinois by calling (847) 888-8802

Dr. Noga Askenazi, Advanced Allergy & Asthma Associates

Advanced Allergy & Asthma Associates

Dr. Noga Askenazi | Dr. Eugenia Hahn | Meredith Cirrincione

Dr. Noga Askenazi is a nationally recognized asthma and allergy specialist who is board certified in pediatric and adult allergy. Her areas of special interest are innovative treatment of rashes, sinusitis, food allergies, asthma and immune disorders. She was past President of the ISAAI (Illinois Society of Allergy, Asthma, & Immunology), works on state and national committees for advancement of the allergy field and is a consultant for Advocate, AMITA, Northwestern amongst other health care systems. Her joy is helping patients reach their goals after together determining best treatments. Her staff and patients are a chosen family, and she invests in their happiness. She enjoys gardening, biking and cooking to good music.


Dr. Eugenia Hahn is a highly recognized board certified allergist and immunologist who treats patients of all ages. Her areas of special interest are food allergy, eczema, and asthma. She is president of the Illinois Society of Allergy & Asthma, a National Committee leader of the American Academy of Allergy, Asthma, and Immunology, a member of the American College of Allergy, Asthma, and Immunology working on new treatment options for patients. She is a consultant for Advocate, Northwestern, AMITA, Northwest Community healthcare systems amongst many others. Her patients mean everything to her as she takes pride in finding the why behind the problem. She enjoys reading and spending time with her family.


Meredith Cirrincione is a board certified Physician Assistant and specializes in treating allergies, with a focus on asthma, rashes, environmental allergies, chemical and food allergies. She holds a Masters in Physician Assistant Studies from The Chicago Medical School - Rosalind Franklin University of Health Sciences. She is a Fellow member of the American Academy of Physician Assistants, the Illinois Academy of Physician Assistants, and the Association of PAs in Allergy, Asthma and Immunology. She likes to approach things holistically. She is a strong patient advocate and adored by her patients. She enjoys singing, reading, cooking, and the great outdoors.

Our Happy Patients

Many Patients are satisfied and even ecstatic with the abilities of Dr. Askenazi and
the team at Advance Allergy & Asthma Associates.