Allergies

Our immune systems consist of two parts: the innate (or general) immune system and the adaptive (or acquired) immune system. In this video, I explain the basics of these immune systems, [...]

  What are T cells and what do they do? Dr. Zelfand explains the importance of these special white blood cells. She illuminates how T cells can transform into T Helper (Th) Cells 1, 2, 3, or [...]

If you own a human body, chances are you’ve taken at least one course of antibiotics in your lifetime – whether it was bubble-gum flavored amoxicillin for that ear infection in childhood, [...]

Genetics alone can’t explain the rise in allergic diseases we’ve seen in the industrialized world. Allergic conditions are on the rise. In fact, the rate of peanut allergy has doubled in the US [...]

Why Getting the Occasional Cold or Flu Might Not Be Such a Bad Thing Every now and then I have a patient who boasts proudly, “I’m healthy as a horse! I haven’t had a cold or flu in [...]

Electronic cigarettes (“E-cigs”) are gaining popularity. But could they do more harm than good? Electronic cigarettes (also referred to as “e-cigs”) offer smokers a less smoky, less stinky [...]

Going dairy free was kind of hard. After years of recommending the elimination and challenge diet to my patients, this past summer I finally took the leap of courage and did it myself. I knew it [...]

This is the gold standard for determining your food intolerances. When the gut is inflamed and irritated, it can begin reacting to foods that might otherwise not bother it. The elimination and [...]

Many dermatologists manage eczema with steroid creams. But is a steroid deficiency really the cause of dry, itchy skin? Eczema – or, as we doctor-types like to call it, Atopic Dermatitis – has [...]