One morning you wake up and your nose is runny, you’re sneezing and itchy, and you’re having breathing difficulties. At first you might think you’ve just picked up a virus or common allergy, but you could be suffering from a dust-mite allergy. Every home has dust mites, and they can cause a variety of health problems for people who are sensitive to them. Here are some facts about dust mites and how to reduce their presence in your home.