Allergies are a result of the overreaction of the immune system to substances mistaken to be harmful, but actually are not. Allergens include pollen, mold, animal dander, food, drugs and others, and reactions can range from mild to severe.
The good news about treating allergies is that there are lots of options. The bad news is that sometimes it takes quite a bit of trial and error with a bunch of different medicines before you find what works best for your particular allergies. You can read an article I wrote about how to choose the right allergy medicine for you, and I…