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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
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    • David J. Knysak, MD
    • Raymond M. Pongonis Jr., MD
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Yenny Rojas

Finding the Right Doctor for Your Food Allergy Testing

January 25, 2021

Allergy food

If you have a food allergy, your immune system launches a (mistaken) response that causes a series of symptoms. The reaction can range from mildly uncomfortable to life-threatening. It’s not always easy to identify what exactly you are allergic to. For that, you need to enlist an allergist – a Read More

Filed Under: Allergies Tagged With: Allergy Doctors near me, Food Allergy, food allergy doctor near me, Food allergy testing near me

A Guide to Treatment for Childhood Asthma

January 22, 2021

Boy using an asthma inhaler

Caring for a child with asthma can seem like a daunting responsibility, given the unique challenges the child may face, especially when they are very young. If you suspect that your child has asthma, early intervention is crucial in preventing flare-ups and for protecting your child’s lung health Read More

Filed Under: Asthma Tagged With: Allergist Elmhurst IL, allergist near me, allergy testing, Asthma Treatment DuPage County, Asthma Treatment near me, asthma triggers, Pulmonary Function Testing

Treatment options for allergic rhinitis

January 15, 2021

I think I'm going to the doctor later

Allergic rhinitis is an immunological response to allergens. These allergens may vary, from dust to pollen to animal dander. Allergic rhinitis is called hay fever if the allergens are seasonal and due to a higher pollen count. Allergies may be seasonal or perennial, which means patients experience Read More

Filed Under: Allergic Rhinitis Tagged With: allergic rhinitis symptoms, allergic rhinitis treatment near me, Allergist DuPage County, allergist near me, Allergists in Will County

How Severe Is Your Asthma?

December 18, 2020

Asthma attack. Young woman reaching inhaler on table

If you have asthma, knowing its severity and its triggers is key in controlling your symptoms. Your allergist will determine these factors when recommending a treatment for you. According to the National Asthma Education and Prevention Program, which is an initiative under the National Institutes Read More

Filed Under: Asthma Tagged With: asthma attack, Asthma Management, Asthma Treatment DuPage County, Asthma Treatment near me, asthma triggers

Hives: Diagnosis and Treatment

November 27, 2020

Skin rash, Urticaria, Allergic skin reaction.

Hives, also called urticaria, is a type of skin reaction that produces reddish and very itchy welts. The welts may vary from small to extremely large blotchy areas on the skin. Acute hives are usually a result of an allergic reaction to an insect bite, food, airborne allergen, or medication. They Read More

Filed Under: Allergies Tagged With: allergists near me, Allergy Doctors, Allergy Symptoms, Hives treatment DuPage County, Hives treatment near me, Hives treatment Will County

Skin Allergies: Types and Triggers

November 20, 2020

Allergy Doctor checking patients skin allergy

As you go through your day, you encounter a wide variety of substances, including the objects you touch, the food you eat, and even things floating in the air. Sometimes, these may result in an adverse reaction known as an allergy. Have you ever had a rash or persistent itchiness? If this has Read More

Filed Under: Allergies Tagged With: Allergy Symptoms, Contact Dermatitis, Heat Rash, Hives, Seborrheic Dermatitis, Skin Allergies, skin allergy treatment near me

Recognizing and Treating Food Allergy Reaction Symptoms

November 13, 2020

young woman scratching herself.

For most of us, a peanut is a tasty nut and also tastes great in the soft form of peanut butter. However, for others, a peanut is a potentially life-threatening food if accidentally consumed. The cause of a food allergy could be any food, including eggs, milk, or shellfish. The worst-case Read More

Filed Under: Food Allergies Tagged With: Food Allergy Reaction, Food Allergy Reaction Symptoms, Food Allergy treatment Downers Grove, Food Allergy treatment Naperville, Food Allergy Treatment near me

Oral Immunotherapy: What You Should Know

November 6, 2020

Oral Immunotherapy

A food allergy can range in severity. For instance, you can experience a mild reaction like a rash, or the reaction could be as serious as your throat swelling up. A food allergy can pose a problem when you cook for your family and especially when you go out to eat. Fortunately, at Oak Brook Read More

Filed Under: Immunotherapy Tagged With: Allergist Elmhurst IL, allergist near me, Allergy Reaction, Food Allergy, Oral Immunotherapy

Skin Allergy Overview

October 30, 2020

Skin Allergy

Have you ever gone for a walk outdoors only to return home with your skin red and itchy? What you are experiencing is probably an allergic reaction. It's uncomfortable and irritating, but it can be treated. When your immune system reacts to an allergen, your cells release a chemical called Read More

Filed Under: Allergies Tagged With: allergists near me, Allergy Doctors, Allergy Doctors near me, Allergy Symptoms, Oak Brook Allergists, Season Allergies, skin allergy treatment near me

Food Intolerance Symptoms

October 23, 2020

Food Intolerance

People who have certain physical reactions to specific foods have either a food allergy or food intolerance. These two conditions tend to share similar symptoms, but they are distinctly different conditions requiring different treatments. The biggest difference is that food intolerance is never a Read More

Filed Under: Food Allergies, Food Intolerances Tagged With: Food Allergy, Food Intolerance Symptoms, Food Intolerance test near me, Gluten Intolerance

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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.