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
How do biologics work to treat my eczema?
Biologics are a class of medications that can be used to treat eczema, a chronic skin condition characterized by inflammation and itching. Biologics work by targeting specific parts of the immune syst...
Biologics are a class of medications that can be used to treat eczema, a chronic skin condition characterized by inflammation and itching. Biologics work by targeting specific parts of the immune syst...
How is atopic dermatitis different from eczema?
Atopic dermatitis and eczema are often used interchangeably, but they are not exactly the same thing. Atopic dermatitis is a type of eczema.Eczema is a general term that refers to a group of condition...
Atopic dermatitis and eczema are often used interchangeably, but they are not exactly the same thing. Atopic dermatitis is a type of eczema.Eczema is a general term that refers to a group of condition...
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 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 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
