Dust mites are tiny, eight-legged arachnids of the spider family measuring less than a fraction of a millimetre in size and are the major cause of allergic reactions. House dust mites survive on shed human skin scales. As these mites digest their food, they produce...

Dr. Mark Greenwald talks about the increase of asthma in children going back to school.

How can we treat and prevent end-of-summer allergies? Dr. Mark Greenwald talks to Global News Family Health.

The plant most commonly associated with pollen allergies is ragweed. Ragweed is the most common cause of seasonal allergies, is very light and can travel hundreds of miles. To alleviate your symptoms and/or allergies to ragweed pollen ask your allergist about...