Allergy and Asthma Care of Brooklyn

A blog written by Dr. Cascya Charlot and the staff at Allergy and Asthma Care of Brooklyn, New York.

Am I Allergic To Penicillin?

Am I allergic to Penicillin? 

Dr. Cascya Charlot of Allergy & Asthma Care of  Brooklyn explains that the answer is "Probably Not".

Penicillin allergies are the most documented drug allergy in the United States, reported to affect over 10 percent of the population.  However, recent reports have found that 9 out of 10 patients (90%) who report as penicillin allergic are incorrectly diagnosed.

Symptoms of rash and stomach problems are commonly mistaken as allergic reactions to antibiotics, though the majority are unrelated.

Why get tested?

Incorrect labeling of patients as "Penicillin allergic" is a leading cause for the overuse of broad-spectrum antibiotics which are more expensive and increased side effects.  This overuse of broad-spectrum antibiotics has directly resulted in the growing antibiotic resistance.

Overuse of broad-spectrum antibiotics for penicillin allergies has led to an increase in drug-resistant bacteria such as Methicillin-resistant Staphylococcus aureus (MRSA).  Broad-spectrum antibiotics also significantly increase the final cost of treatment for patients to use alternative medications.

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Are tree nut allergies diagnosed too often?

Study finds 50 percent of those who think they’re allergic pass an oral food challenge.Many patients with a history of a single tree nut allergy are told to avoid all other tree nuts.  But is that necessary? If you have a tree nut allergy and were advised to avoid other tree nuts based only on a positive blood or skin prick test, you may not be allergic to the other nuts. New research strongly suggests you should consider having an oral food challenge to properly diagnose additional nut allergies, especially if you’ve never had a reaction to eating those tree nuts before.A new study in Annals of Allergy, Asthma and Immunology, the scientific publication of the American College of Allergy, Asthma and Immunology (ACAAI) showed that among people allergic to one nut who have a positive test to other tree nuts, more than half passed an oral food challenge to other tree nuts without a reaction. Passing an oral food challenge means you aren’t allergic to that nut. Tree nuts include almonds, cashews, walnuts and hazelnuts, but not peanuts. The study noted that nearly none of the people allergic to peanut, but sensitized to tree nut, were clinically allergic to tree nut. This is the first study indicating that peanut allergic people may not need to avoid all nuts.“Too often, people are told they’re allergic to tree nuts based on a blood or skin prick test,” says allergist Christopher Couch, MD, ACAAI member and lead author of the study. “They take the results at face value and stop eating all tree nuts when they might not actually be allergic. We examined records of 109 people with a known tree nut allergy to an individual nut. They were tested for other tree nuts they had never eaten before using blood or skin prick tests. Despite showing a sensitivity to the additional tree nuts, more than 50 percent of those tested had no reaction in an oral food challenge.”  An oral food challenge is considered the most accurate way to diagnose food allergy. During an oral food challenge, the patient eats tiny amounts of the food in increasing doses over a period of time, followed by a few hours of observation to see if they have a reaction. An oral food challenge should only be conducted under the care of a trained, board-certified allergist. You should never do one on your own since if you are allergic, you could have a severe, life-threatening reaction.“Previous studies suggested people with a tree nut allergy, as well as those with a peanut allergy, were at risk of being allergic to multiple tree nuts,” said allergist Matthew Greenhawt, MD, chair of the ACAAI Food Allergy Committee and study co-author. “We found even a large-sized skin test or elevated blood allergy test is not enough by itself to accurately diagnose a tree nut allergy if the person has never eaten that nut. Tree nut allergy should only be diagnosed if there is both a positive test and a history of developing symptoms after eating that tree nut.”Dr. Greenhawt stressed the study did not include challenges to nuts that the individual had a documented history of having a reaction to when eaten.  “The practice of avoiding all peanut and tree nuts because of a single-nut allergy may not be necessary,” says Dr. Greenhawt. “After an oral food challenge, people allergic to a single tree nut may be able to include other nuts in their diet."
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Urticaria (hives) Support Group Meeting

Urticaria is a common condition which affects 25% of the US population. This condition can be frustrating and anxiety provoking. Come share your urticaria story and meet other patients struggling with this condition. As a service to the community, we will be holding a free urticaria support group and educational session on Tuesday, August 29 at 11 am. Location: Allergy and Asthma Care of Brooklyn, 10 Plaza Street East, Suite 1E, Brooklyn, NY 11238. Please RSVP by sending us an email at This email address is being protected from spambots. You need JavaScript enabled to view it.
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Dr. Charlot awarded Castle Connolly "Top Doctor" for 2017

Dr. Cascya Charlot awarded 2017 Castle Connolly Top Doctor

Dr. Cascya Charlot has been named by patients and peers as a Castle Connolly "Top Doctor" recipient for 2017 for the "Allergy and Immunology" category.  For more than two decades, Castle Connolly Medical Ltd., America's trusted source for identifying Top Doctors, has based its selection process on the foundation of peer nominations.  This involves contacting directly more than 50,000 physicians and hospital and healthcare executives, a nationwide distribution of nomination notifications via various media channels.

To view Dr. Charlot's profile and to learn more about the Castle Connolly nomination process, please follow this link.

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Dr. Charlot selected as "Super Doctor" for 2017

Dr. Charlot selected as 2017

We are proud to announce that for the third year in a row, Dr. Cascya Charlot has been awarded the recognition of "Super Doctor" for New York in 2017.

Super Doctors identifies top doctors as selected by their peers and the independent research of MSP Communications. Super Doctors identifies top doctors as selected by their peers and the independent research of MSP Communications.

Super Doctors is published online and also in print as a special advertising section in leading newspapers and city and regional magazines.

To visit Dr. Charlot's "Super Doctor" profile and to learn more about the Super Doctor selection process, please follow this link

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Controlling Asthma - A Breath of Fresh Air

Dr. Cascya Charlot - Controlling Asthma Attacks

Dr. Cascya Charlot of Allergy and Asthma Care of Brooklyn, NY was recently featured in an article which talks about "What is Asthma" including why asthma attacks us at certain times of the year, its symptoms, and what we can do to control asthma attacks.  

Please click here to read the complete article.

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Infants & Peanut Proteins

Peanut allergies in infants

Dr. Cascya Charlot of Allergy and Asthma Care of Brooklyn was recently featured in an article discussing new findings in peanut allergies and new guidelines in the way we should introduce infants to peanuts.  

Please click here to view the entire article.

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Dr. Charlot voted TopDoc in 2017!

We are honored that Dr. Cascya Charlot was featured as a TopDoc in Ny Magazine's Best Docs of 2017!!! The magazine hit newstands on June 1, 2017.
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Attacking Allergies in Seniors

Do allergies have you in agony? Arm yourself against attacks with a little knowledge and simple steps that can help.  Dr. Cascya Charlot discusses these steps and also reminds us that we can develop new food allergies as we age.

Please click here to read the full article.   

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Urticaria (hives) Seminar

The Allergy and Asthma Care of Brooklyn is happy to announce a free educational session for patients:

Urticaria: what is it, how to treat it, and what’s new? 

Speaker: Dr. Cascya Charlot

When: Wednesday February 15, 2017 at 1 pm

Where: 10 Plaza Street East, Suite 1E, Brooklyn, NY 11217 To RSVP please email: This email address is being protected from spambots. You need JavaScript enabled to view it.

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Peanut are back!

What's all this talk about peanut allergies? Read about why early introduction of peanuts may actually decrease the incidence of peanut allergies:
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Upcoming Event - Learning More About Asthma Control

Asthma Control Dr Charlot sm

Join Dr. Cascya Charlot of Brooklyn Allergy on Wednesday, December 9 from 5:00 to 6:30 PM as she discusses options on controlling asthma.  Admission is FREE!


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Dr. Charlot Named as 2015 NY Super Doctors award recipient

Dr. Cascya Charlot named as New York "Super Doctors" recipient for 2015
Dr Cascya Charlot 2015 NY Super Docs

Dr. Cascya Charlot of Allergy and Asthma Care of Brooklyn has been named as a 2015 New York "Super Doctors" award recipent.

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Advances in Allergen Immunotherapy at NYM

Dr Charlot cropped

To call allergen immunotherapy time-tested is an understatement. Commonly known as "allergy shots," the introduction of allergen immunotherapy predates Prohibition, and has been an effective treatment for patients living with severe allergies since Herbert Hoover sat in the White House.

Almost a century later, there is an ever-expanding array of effective, once-a-day medication available to treat allergy symptoms. But immunotherapy remains the only treatment that can alter the natural course of an allergic Cascya Charlot, M.D., was recently appointed director of NYM's Division of Pediatric Allergy and Immunology. disease like chronic rhinitis (hay fever) or allergic asthma, and permanently reduce the frequency and severity of allergy symptoms such as severe congestion, sinus pressure, grogginess and sleeplessness. Furthermore, ongoing research and refinement of immunotherapy guidelines have made immunotherapy treatments for outdoor and indoor allergies more effective than ever before. Perhaps this is why, more and more, Brooklynites are requesting allergen immunotherapy for their children, says Cascya Charlot, M.D., who was recently appointed director of NYM's Division of Pediatric Allergy and Immunology.

"Children can start immunotherapy as early as age five, and many children living in Brooklyn are just reaching that age," says Dr. Charlot. "A full course of allergen immunotherapy takes time—usually three to five years, starting with weekly visits for injections for the first six months, and then monthly visits for the remainder. However the benefits of immunotherapy can last a lifetime, particularly for children living in New York City, where pollen, mold spores and dust mites can be found around every corner. In addition, the first FDA-approved oral, injection-free immunotherapy (specifically, for grass pollen allergies) became available in 2014. More are sure to come."

For those with milder allergy symptoms that occur seasonally, over-the-counter treatments and lifestyle adjustments may be all that is necessary. Dr. Charlot is quick to point out that a common problem is that many of these patients do not even know that their springtime cold or upper respiratory infections have, in fact, been caused by a seasonal allergy.

"A simple 'scratch test,' performed by an immunologist, would likely have been able to identify that allergy in less than 30 minutes, and get the patient on the road to effective relief of symptoms," says Dr. Charlot. "What matters most is getting started, and finding the right treatment for each individual patient. Many parents of my patients tell me that they wish they had known about allergen immunotherapy when they were growing up, or that they had found out that they were allergic to pollen when they were younger. I tell them that there is no time like the present!"

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Children's Allergies - A Video Series Featuring Dr. Cascya Charlot


In the following video series, Dr. Cascya Charlot of Allergy and Asthma Care of Brooklyn as well as parents discuss children's allergies.  Topics include identifying the allergy, what to do once you do identify the allergy, when to see an allergist, making your house allergy safe and dealing with the food allergy on a long-termed basis.

To view the complete video series, please click here.

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Does your child have oral allergy syndrome?

Story by Denise Dador

LOS ANGELES (KABC) -- Some children do whatever they can to avoid eating fruits and vegetables. But if your child swears that those carrots at dinner are making their tongue tingle and they have hay fever, it may be time to call an allergist - however, it may not be a food allergy.

Pollen food allergy syndrome, an allergic reaction that affects the mouth, lips and throat, is also known as oral allergy syndrome. Dr. Cascya Charlot with the American Academy of Allergy, Asthma and Immunology says most parents are surprised to learn how common it is. Click for full story.

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How to Help Children with Severe Allergies Live Happy Lives


Children with severe allergies may experience negative emotions, such as stress and anxiety. Get tips for empowering your child and not letting their allergies define them.

Get real life advice from three mothers of children with severe allergies plus expert input from Dr. Cascya Charlot on keeping your child safe and happy.

Click here to view the series of videos on

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What's behind the "pollen tsunami"

Dr. Charlot was recently featured on CBS Evening News discussing the Spring allergy season. Pollen counts have been so high that many have dubbed it a "pollen tsunami." In the video below, CBS News chief medical correspondent Dr. Jon LaPook explains what's behind the surge.

View More: Live News|More News {color:#4B5054;text-decoration:none; font: normal 12px Arial;}.cbs-link:hover {color:#A7COFF;text-decoration:none; font: normal 12px Arial;}.cbs-pipe {color:#303435;padding: 0 2px;}.cbs-resources {height:24px; background-color:#000; padding: 0 0 0 8px; width: 612px;}.cbs-more {font: normal 12px Arial; color: #4B5054; padding-right:2px;}For the complete article on the CBS News website, please click here.


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Advice From Parents on Managing Children's Severe Allergies


When your child has a severe allergy, you and your family can still go out and live a normal life, but it's important to prepare in advance. Find out what steps Jill, Beth and Gina take to protect their children from food allergies.

Dr. charlot discusses what the first steps are when a child has an allergic reaction to a food.

To view the video "Advice From Parents on Managing Children's Severe Allergies" as well as other outstanding videos dealing with children with food allergies, click here.

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Smart Strategies for Parenting Children With Severe Allergies

Knowing how to identify an allergic reaction and what steps to take in case of an emergency is essential when your child has severe allergies. Get tips to help you be prepared in any situation.

Dr. Charlot and parents discuss what you can do as a parent to identify an allergic reaction and what you should do once you identify an allergic reaction in the video "Smart Strategies for Parenting Children With Severe Allergies".  

You can see this video as well as other videos dealing with allergies in this series. 

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Get In Touch

  • Allergy and Asthma Care of Brooklyn
  •  10 Plaza Street # 1E
    Brooklyn, NY 11238
  •  (347) 564-3211