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In observance of the holidays, all offices will be closed from December 24th through December 26th. We'll resume regular operations on December 27th, and close again for New Year's Eve and New Year's Day.  Wishing you a happy and healthy holiday season! 

Oak Brook Allergists
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    • Downers Grove: (630) 789-0575
    • Elmhurst: (630) 574-0460
    • Naperville: (630) 961-2960
    • Plainfield: (815) 609-8286
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    • David J. Knysak, MD
    • Raymond M. Pongonis Jr., MD
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    • Allergic Rhinitis (Hay Fever)
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allergy doctor in IL

How to Prepare for an Allergy Doctor Visit

November 3, 2023

allergy doctor assists child asthmatic patien

If seasonal hay fever is suddenly upon you, or if you notice oral, respiratory, or skin symptoms after eating certain foods or  experiencing a change in climate, you are ready for a visit with an allergy doctor. Your allergist is an expert in the triggers for and treatment of seasonal, insect, Read More

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How Can an Allergy Doctor Help You?

September 8, 2023

Allergist assists young asthmatic patient

As springtime blossoms and summer approaches, many people find themselves sneezing, coughing, and dealing with itchy eyes. Some might brush off these symptoms as a seasonal cold. However, they could be the signs of a more persistent problem: allergies. An allergy doctor, also known as an Read More

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Allergic Reaction Treatment 101: How Do You Make an Allergic Reaction Go Away Fast?

August 19, 2022

Itching In A Woman

While allergies are usually cursed as annoying, they are far from being a trivial inconvenience for many people. Allergies can dampen one’s mood, affect one’s quality of life, and weaken the immune system. In severe cases, allergy reactions can even be life-threatening. It stands to reason that Read More

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First-Aid Treatment for Allergic Reaction

May 6, 2022

Testing Before allergic reaction treatment

An allergic reaction can be a frightening experience, because although it is predictable, it is not always avoidable. As if that were not enough, an allergy reaction, particularly a severe one, can cause potentially life-threatening symptoms like difficulty breathing. That is why it is imperative Read More

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Is Your Food Allergy Real or Fake?

August 6, 2021

Peanut allergy

Some people have adverse reactions to certain foods, like nuts and dairy. You might think that you have a food allergy. However, it might actually be food intolerance. Food allergies can be life-threatening, so knowing the difference could help save your life. Read on to find out how to know if Read More

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Questions to Ask an Allergy Doctor

March 5, 2021

Young doctor visits senior woman with surgical mask

If you have allergies, you most likely have a lot of questions for your doctor. It is important to scope and understand your allergies to avoid not only discomfort from reactions but also to avoid life-threatening situations. Here is a list of frequently asked questions about allergies for your Read More

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At Oak Brook Allergists, our asthma and allergy specialists offer comprehensive care for Allergic Rhinitis (Hay Fever), Asthma, Chronic Sinusitis, Eczema & Hives, Food Allergies, Pet Allergies, and Stinging Insect Allergies.