Allergy Asthma & Sinus Center

At Allergy, Asthma & Sinus Center, we work to provide you with the highest quality of patient care and effective allergy treatments in Sterling, Leesburg, and Purcellville, VA. With a warm and welcoming environment and flexible schedules to fit your busy lifestyle, we work hard to be your partner in health. ​ You are more than just a name on a patient chart to us. We take the time to get to know you and your family. Every one of our experienced and knowledgeable team members is dedicated to providing you with personalized, friendly care and relief from your allergies in Sterling, Leesburg, and Purcellville. By understanding your healthcare needs and explaining any treatment options to you, we develop a path of communication that provides you with the unique allergy treatments that you deserve

Knowledge Center About Allergies​

Food Allergy

A food allergy occurs when the body treats a particular food protein as foreign to the body and responds with release of chemicals called histamines, causing food allergy symptoms. Food allergies can cause an overreaction by your immune system reaction that occurs soon after eating even a tiny amount of a certain food. Symptoms of food allergies can range from itching, swelling, and rashes to severe allergic reactions that include dizziness, trouble swallowing or breathing, abdominal cramps, vomiting and loss of consciousness.


Skin Allergy

Eczema refers to skin conditions that cause inflammation or irritation of the skin. Atopic dermatitis, the most common form of eczema, involves itchy scaly skin. Patients with atopic dermatitis are more likely to develop environmental allergies and/or asthma.

Atopic dermatitis patients have impairment of the barrier function of their skin. In other words, their skin has small holes in it that let things in that shouldn’t get in.



Most American households have a pet, and most pet owners look at Fido or Fluffy as a member of the family. When a family member is suffering from or suddenly develops animal allergies in Sterling, Leesburg, or Purcellville, Allergy, Asthma & Sinus Center offers relief and management of pet allergies. Residents should contact us today to learn how to keep their animal allergies under control! ​


At Allergy, Asthma & Sinus Center, our board-certified allergy and asthma specialists are trained in the diagnosis and treatment of asthma disorders in Sterling, Leesburg, and Purcellville, VA. Our specialists are trained to identify the factors that trigger asthma and to help our patients treat their respiratory problems in Sterling, Leesburg, and Purcellville, VA.
Asthma is a chronic disease that involves inflammation and narrowing of the airways, resulting in decreased airflow, mucus production, and symptoms such as wheezing, chest tightness,


At Allergy, Asthma & Sinus Center, our dedicated staff works to help our patients feel better fast! We provide diagnosis and treatment of your sinus problems in Sterling, Leesburg, and Purcellville. Our treatments work in a variety of effective ways that help you get back on track with your busy lifestyle without uncomfortable sinus pain and pressure. 
Sinuses are normally pairs of empty cavities that are connected to one another. Sinuses can collect mucus and fluid. Most of the sinuses drain into the nose.

Egg Allergy and Flu Vaccine

Flu season is here and so is the need to be protected by getting vaccinated. Most types of influenza vaccine contain a very small amount of egg protein, so before giving it health providers often ask if you are allergic to eggs. But does being allergic to egg mean you should not get the vaccine?

Recent studies have shown that even individuals with confirmed egg allergy can safely receive the flu vaccine.


Our Locations

Leesburg/ Lansdowne

19465 Deerfield Ave,
Suite 101, Lansdowne, VA 20176

Call Us at (703) 726-9720

Monday 9 a.m.–6:30 p.m.
Tuesday 9 a.m.–4:30 p.m.
Wednesday 11 a.m.–6:30 p.m.
Thursday 9 a.m..–6:30 p.m. Shot hours 1 p.m. - 6:30 p.m.
Friday 8 a.m.–4:30 p.m.


46169 Westlake Drive,
Suite 140, Sterling, VA 20165

Call us at (703) 726-9720

Tuesday 1:00 p.m.–6:30 p.m.
Thursday 9 a.m.–4:30 p.m.


17340 Pickwick Drive,
Suite 110, Purcellville, VA 20132

Call us at (540) 338-1215

Monday 11 a.m.-6:30 p.m.
Wednesday 9 a.m.-5:00 p.m.
Thursday 11 a.m.-6:30 p.m.
Friday 9 a.m.-5:00 p.m.

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Dr. Ben Daghigh
Specialty in Allergy and Immunology

We look forward to helping you feel better!


If you have questions or concerns, feel free to contact our Customer services department.