For over 60 years, our Illinois allergists have been empowering patients to maximize their Allergy and Asthma relief

Serving patients in our convenient Barrington and Highland Park, IL offices

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Welcome to Associated Allergists and /Asthma Specialists

Why your allergist is more important than your yoga instructor

In today's demanding society, many people actually have to schedule time to relax. But when simply breathing or living in your own skin becomes uncomfortable or unbearable, the last thing you want to do is slow down and focus your awareness on the present moment. Thus, asthma and allergies increase your stress both directly and indirectly.



Managing your allergic condition can improve your overall health and quality of life immensely. By working with an allergist, you can take advantage of the latest allergy and asthma treatments and get significant relief. You can also learn to create supportive working and living environments that are less likely to exacerbate your symptoms. Then you will be free to practice true mindfulness and experience health and joy on a daily basis.

Conditions & Treatments

Child in a yellow shirt sitting on grass, smiling up at a toy airplane in a sunny park.
Gloved hands marking a forearm with circles and numbers during a skin treatment procedure
Person scratching an itchy red elbow on a white shirt
Woman and child pet a dog in a sunny park, with the child smiling and the dog looking up.
Woman using an inhaler indoors, with a hand on her chest, in a living room.
Woman sitting on a couch, clutching her chest and looking uncomfortable in a bright living room
Woman wrapped in a white blanket coughing into her fist, looking unwell outdoors
Man sitting on a couch wrapped in a gray blanket, holding a cup in a cozy living room.
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Pile of pink and white capsules scattered on a white surface
Assortment of healthy foods on a white surface: milk, eggs, nuts, shrimp, orange, grains, chocolate, and oil.
Close-up of hands with red, itchy rash on pale skin, suggesting a skin irritation or allergy.
Bright living room with gray sofas, large windows, a potted plant, and a light rug in sunlight
A hand wearing a white glove being pulled onto the wrist of another hand
Backyard patio with gravel area, wooden fence, patio umbrella, and flower beds on a sunny day
Person holding their forehead and nose with a red, painful-looking forehead against a white background
Child scratching forearm as bees swarm around, wearing a yellow gingham shirt outdoors

Log In For Your Telemedicine Appointment

For telemedicine appointments please use the following links:

Dr. Resnick

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Dr. Lowenthal

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Dr. Lerman

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Nurse Practitioner M. Lacaillade

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For Kids

Childhood should be a happy time of growth, wonder, and learning. Allergies, asthma, and skin conditions introduce an element of seriousness into your child's life far too soon. Health problems may cause your child to miss active play, sports, and outdoor pursuits. Worse, allergies and other challenges can lead to missed school days and even bullying.


A board-certified allergist can assess your child and administer effective treatments in the right doses for smaller bodies and younger systems. With consistent, quality care, kids can get back to the classroom and the playground with a smile.

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Meet Our Doctors

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Smiling man wearing glasses in a suit and tie against a plain beige background
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“Always the best experience. They are so sweet and caring. Dr Resnick is amazing and so good with kids.”

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“Dr. Lowenthal was kind and patient. He really listened to my concerns and came up with a conservative plan which I liked. The nurse on the phone was very caring. If you have any allergy concerns I would recommend Dr. Lowenthal.”

Our Locations

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Barrington, IL

27790 W Hwy 22, STE 16, Barrington, Illinois 60010, United States

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Highland Park

1849 Green Bay Road, STE 220, Highland Park, Illinois 60035, United States

Our Partner

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