Dr. John Simpson, MD

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 ...

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...

How do biologics work to treat my asthma?
Biologics are a class of medications that can be used to treat asthma, a chronic lung disease characterized by inflammation and narrowing of the airways. Biologics work by targeting specific parts of ...

I have COPD. What can help me breathe better?
Treatment for COPD can help improve breathing and slow the progression of the disease. Some treatments include:bronchodilators, which are medications that relax the muscles around the airways to help ...

Is there really a hypoallergenic dog species?
The term "hypoallergenic" is often used to describe dogs that are less likely to cause an allergic reaction in people. However, there is no such thing as a completely hypoallergenic dog, as ...

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...