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
Are inhaled corticosteroids safe to use for my asthma?
Inhaled corticosteroids (ICS) are a type of medication that is commonly used to treat asthma and other respiratory conditions. They are considered safe because they are delivered directly to the lungs...
Inhaled corticosteroids (ICS) are a type of medication that is commonly used to treat asthma and other respiratory conditions. They are considered safe because they are delivered directly to the lungs...
Eggplant makes my mouth itchy. Am I allergic to it?
If eating eggplant causes itching in your mouth, it is possible that you have an allergic reaction to it. Food allergies are caused by an abnormal response of the immune system to certain proteins fou...
If eating eggplant causes itching in your mouth, it is possible that you have an allergic reaction to it. Food allergies are caused by an abnormal response of the immune system to certain proteins fou...
How does bronchial thermoplasty work to treat asthma?
Thermoplasty is a minimally invasive procedure that uses heat to reduce the smooth muscle in the airways, which can help to open up the airways and make it easier to breathe. The procedure is typicall...
Thermoplasty is a minimally invasive procedure that uses heat to reduce the smooth muscle in the airways, which can help to open up the airways and make it easier to breathe. The procedure is typicall...
What are treatments for my child’s asthma?
The treatment of childhood asthma is similar to that of adult asthma, but there are some important considerations.The main goal of treatment is to control symptoms, prevent exacerbations and improve t...
The treatment of childhood asthma is similar to that of adult asthma, but there are some important considerations.The main goal of treatment is to control symptoms, prevent exacerbations and improve t...
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...
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
