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Dr. Boyan Hadjiev

Allergist and Immunologist

Dr. Boyan Hadjiev is a top Allergist and Immunologist in New York, . With a passion for the field and an unwavering commitment to their specialty, Dr. Boyan Hadjiev is an expert in changing the lives of their patients for the better. Through their designated cause and expertise in the field, Dr. Boyan Hadjiev is a prime example of a true leader in healthcare. As a leader and expert in their field, Dr. Boyan Hadjiev is passionate about enhancing patient quality of life. They embody the values of communication, safety, and trust when dealing directly with patients. In New York, New York, Dr. Boyan Hadjiev is a true asset to their field and dedicated to the profession of medicine.
Dr. Boyan Hadjiev
  • New York, New York
  • Case Western Reserve University School of Medicine; Cleveland
  • Accepting new patients

Does milk improve immunity?

From an immunity persoective, I cannot see a reason why NOT drinking milk should be a problem. From a nutrition aspect, it may decrease intake of calcium and energy intake in the READ MORE
From an immunity persoective, I cannot see a reason why NOT drinking milk should be a problem. From a nutrition aspect, it may decrease intake of calcium and energy intake in the form of fats and proteins.
Also, there may be a reason why your child does not like milk - lactose intolerance (unlikely) or simply taste or texture. You can discuss it with the pediatrician

Are antihistamines safe to be consumed during pregnancy?

You can take either cetirizine (generic Zyrtec) 10mg or loratadine (generic Claritin) 10mg during pregnancy. In general, you can Google “name of medicine” pregnancy category and READ MORE
You can take either cetirizine (generic Zyrtec) 10mg or loratadine (generic Claritin) 10mg during pregnancy. In general, you can Google “name of medicine” pregnancy category and find out the safety profile of a medication. You can always consult your OB doctor or your regular doctor too.

My daughter was wheezing yesterday after playing with our cat. Why did this happen suddenly?

Your daughter may have developed allergies to cats, or may be wheezing independently. It would be best to consult a healthcare provider for a more accurate answer (allergist, pediatrician, READ MORE
Your daughter may have developed allergies to cats, or may be wheezing independently. It would be best to consult a healthcare provider for a more accurate answer (allergist, pediatrician, etc.)

Can sand trigger skin allergies?

Well, it would be really difficult to tell what exactly is going on without having a look. Having said that, sand is an inorganic mixture of silica and other compounds and it is READ MORE
Well, it would be really difficult to tell what exactly is going on without having a look. Having said that, sand is an inorganic mixture of silica and other compounds and it is unlikely that this is a true allergy. It is more likely an irritant reaction (abbrasions) or something else is mixed in with the sand which is causing the reactions. Please consult with your medical provider

Can anaphylaxis or severe allergies appear out of nowhere?

Yes. This is possible. Without knowing more, it would be difficult to answer this question. Please get a professional opinion.

Do antihistamines cause excessive sleepiness?

Yes. This is a normal effect. You can switch to another type of antihistamine such as fexofenadine or loratadine.

I have noticed loose stools every time I eat watermelon. What could be the reason?

You may intolerant to fructose. Or, it may just be that consuming excess liquids gives you loose stools. You are unlikely to be allergic.

What causes my eyes to water in the morning?

Yes. You could be having allergies to your new environment. If it bothers you, please get it checked out.

I have an allergic rash on the head of my penis. What could it be?

It would be hard to tell you what is wrong without a visual inspection, which for obvious reasons is not possible on this forum. Having said that, possible explanations include READ MORE
It would be hard to tell you what is wrong without a visual inspection, which for obvious reasons is not possible on this forum. Having said that, possible explanations include eczema (atopic dermatitis), psoriasis, contact dermatitis, or irritant dermatitis (irritation). You cannot rule out STI completely, but your explanation makes it less likely.

My advice is to get it checked out with a healthcare professional.

How is poison oak allergy treated?

Assuming you are allegic to poison oak (and poison ivy or poison summac), the treatment would consist of avoidance (if possible), a corticosteroid cream if a rash occurs and (if READ MORE
Assuming you are allegic to poison oak (and poison ivy or poison summac), the treatment would consist of avoidance (if possible), a corticosteroid cream if a rash occurs and (if warranted by severity) an oral corticosteroid medication such as prednisone (or others)

Hope this answers your questions

My face feels itchy. Could this be because of a food allergy?

Hello! Given the limited amount of information provided, I suspect that this is not a case of true food allergy.

I get itchy every time I'm around a dog. Is this an allergy

Yes, this does sound like an allergy to dogs. You should seek qualified medical help and see how best to manage your symptoms as there are many treatment options.

Are Avil and Cetrizine the same when it comes to treating an allergic reaction?

If you mean Advil and not Avil, then no. Advil is ibuprofen, a pain reliever and antiinflammatory medication (NSAID). Cetirizine is a second generation, non-sedating (usually) READ MORE
If you mean Advil and not Avil, then no. Advil is ibuprofen, a pain reliever and antiinflammatory medication (NSAID). Cetirizine is a second generation, non-sedating (usually) antihistamine. Most common side effects are minimal. With cetirizine, it can make you feel tired or sleepy and it could dry out your mucus membranes. For Advil, the most common side effects are limited to GI symptoms, but it can have effects on your kidneys if taken longer.
Addendum: just looked up Avil and in Australia, Avil is a brand of pheniramine maleate, which is a first generation antihistamine. It can and might make your aunt sleepy. For other side effects, I would look on the package insert. Hope this information helps.

Can dog hair cause allergy for my toddler?

Yes. You can do allergy testing on a 3 year-old. The better question is SHOULD you do allergy testing. He may not be allergic now, and may never be allergic to dogs. But he could READ MORE
Yes. You can do allergy testing on a 3 year-old. The better question is SHOULD you do allergy testing. He may not be allergic now, and may never be allergic to dogs. But he could also become allergic. IF you really want to get a dog, talk to your local allergy specialist first. And of you decide to get one, please make sure you get a kid-friendly breed. That is very important.

Is it true that kids born out of a C-section have poor immunity?

There is some truth to that, but it turns out that C section babies are more prone to developing atopy in childhood and adulthood. The important factor is what skin flora colonizes READ MORE
There is some truth to that, but it turns out that C section babies are more prone to developing atopy in childhood and adulthood. The important factor is what skin flora colonizes the baby's GI tract: skin flora from the nurses, the caregivers and the mother OR the mother's birth canal. I recommend you read up on the role of the microbiome in C section babies. Some OB/GYNs are now using what is called a "seeding" procedure. Hope this information helps.

What is the safe dose of cetrizine for kids around 5 years of age?

Hello, 5mg should be the right dose. In a pill or syrup form

Can antibiotic treat seasonal cough?

You are correct. An antibiotic will not treat a virus. You would get better on your own.

Is an allergy to apples possible?

Yes, one can develop an allergy to apples, though a true allergy to apples is rare. It is more likely that your daughter has developed oral allergy syndrome, especially if she READ MORE
Yes, one can develop an allergy to apples, though a true allergy to apples is rare. It is more likely that your daughter has developed oral allergy syndrome, especially if she suffers from "hay fever " (bitch pollen allergy seems to be the culprit).

What could be the cause of the itching and bumps all over my body?

You most likely have developed chronic urticaria (hives). It would probably be best if you saw your allergist for more help.

What could be the best medicine for allergic rhinitis?

There is no "permanent cure" though allergy immunotherapy (allergy shots or allergy drops) can be very effective in essentially desensitizing you. There is no such thing as "best READ MORE
There is no "permanent cure" though allergy immunotherapy (allergy shots or allergy drops) can be very effective in essentially desensitizing you. There is no such thing as "best medicine". The choice of medicine depends on your symptoms - essentially you can take a nasal spray (there are at least five choices) and/or a pill (an antihistamine or leukotriene modifier) and/or decongestant or any combination of the above plus more. The choice of medicines is something you should discuss with your healthcare provider. I am sorry if this information seems too vague; it is the best answer I could come up with given the information your provided.