Allergy Evaluation in Ashburn, VA

Ashburn Allergy, PLLC is a full-service allergy, asthma, and immunology clinic. We evaluate and treat the following conditions and associated services:

Allergy testing

  • Environmental (pollen, animals, dust mites, and molds)
  • Food
  • Drug (select medications)
  • Venom (bees, wasps, hornets, fire ants)

Anaphylaxis (allergic reaction)

Angioedema (swelling)

Asthma evaluation and testing

  • Spirometry (lung function testing)
  • Biologics

Atopic dermatitis (eczema)

Contact dermatitis with patch testing

  • Metal
  • Cosmetics
  • Other substances

Eye allergies


Immunotherapy (“Allergy Shots”)

In office challenges

  • Food
  • Drug


Urticaria (hives)


Patients should not take any antihistamines at least 5 days prior to testing but preferably 7-10 days prior to any possible skin testing or challenges. If you are unsure if your medication contains antihistamines or other medications which can interfere with testing, please call the office at (571) 246-6323 for a complete list of medications to avoid.

Submit your review

Create your own review

Ashburn Allergy, PLLC
Average rating:  
 3 reviews
Best allergy place!

Best allergy doctor and very good nurse. Everyone’s very professional and polite, they provide great service. This is the best allergy place in the DMV!

Excellent Practice and Medical Care

Highest ratings for this practice. Dr. Yoon's excellence in the field of allergies and immunology stands out in comparison to other allergy doctors that I have tried in the past. He was the only doctor that identified and addressed my specific problem. The level of relief is 100%. Many members of my family, and those I have recommended to the practice are experiencing relief after coming under his care. These comments cannot go in without mention of the excellent staff that he has assembled. Professionalism at its best is the only way to describe them. I am grateful to all of them.

I can breathe!

Dr. Yoon and his team are FANTASTIC! This is a provider that takes his time to listen to his patients and identify their needs. The entire staff is a joy to work with. Best of all, I can breathe now!