Medical Expertise of Dr. John Simpson, MD
Dr. John Simpson is a board-certified Washington DC allergist who has been providing care to patients for a wide range of allergic and immunologic conditions for over 25 years.
Dr. Simpson served as Past President of the Greater Washington Allergy, Asthma, & Immunology Society, Allergy & Asthma Society of Virginia.
Tips & Wisdom
Oral Food Challenge - Diagnosing Food Allergies
Challenge testing is when an allergen is given to a patient in small doses under medical supervision to see if there is an allergic reaction. This test is commonly done to diagnose food and drug allergies. This test is the most accurate way to tell if a patient is allergic to a certain food or drug. A challenge test may also be considered to see if a patient has outgrown an allergy. What is an Oral Food Challenge? An oral food challenge (OFC) is a type of challenge test where a patient is ...
Challenge testing is when an allergen is given to a patient in small doses under medical supervision to see if there is an allergic reaction. This test is commonly done to diagnose food and drug allergies. This test is the most accurate way to tell if a patient is allergic to a certain food or drug. A challenge test may also be considered to see if a patient has outgrown an allergy. What is an Oral Food Challenge? An oral food challenge (OFC) is a type of challenge test where a patient is ...
Patient Education Resources
I have asthma. Should I have an asthma action plan?
It's important for those with asthma to have an asthma action plan.An asthma action plan is a written document that outlines specific steps for managing asthma symptoms and preventing asthma attac...
It's important for those with asthma to have an asthma action plan.An asthma action plan is a written document that outlines specific steps for managing asthma symptoms and preventing asthma attac...
Is there a treatment for food allergy?
The treatment for food allergies is to strictly avoid the allergenic food, and in case of accidental exposure, the use of rescue medications such as antihistamines and epinephrine (injectable) in the ...
The treatment for food allergies is to strictly avoid the allergenic food, and in case of accidental exposure, the use of rescue medications such as antihistamines and epinephrine (injectable) in the ...
Is there a treatment for peanut allergy?
The treatment for peanut allergy is strict avoidance of peanuts and products that may contain peanuts. In case of accidental exposure, the use of rescue medications such as antihistamines and epinephr...
The treatment for peanut allergy is strict avoidance of peanuts and products that may contain peanuts. In case of accidental exposure, the use of rescue medications such as antihistamines and epinephr...
What is the treatment for severe asthma?
Severe asthma is a type of asthma that is characterized by frequent exacerbations, or "flare-ups," and difficulty controlling symptoms with traditional asthma medications. The treatment of s...
Severe asthma is a type of asthma that is characterized by frequent exacerbations, or "flare-ups," and difficulty controlling symptoms with traditional asthma medications. The treatment of s...
What types of pollen trigger allergies?
Pollen is a fine powder that is released by trees, grasses, and weeds during the spring, summer, and fall. When these pollens come into contact with the eyes, nose, and lungs of people who are sensiti...
Pollen is a fine powder that is released by trees, grasses, and weeds during the spring, summer, and fall. When these pollens come into contact with the eyes, nose, and lungs of people who are sensiti...
Education & Training
- Medical School: University of South Carolina School of Medicine
- Pediatric Residency: Children’s Hospital of Alabama
- Allergy Immunology Fellowship: Duke University; Cellular Immuno-Biology at University of Alabama Birmingham
