| | Conditions & Treatments | Allergies What is the science name of allergies? Allergy is the common name for the condition known in medicine as atopy. Allergies are caused by an immune system response to an allergen. Allergies - Related Articles How to Control Allergies With Local Honey Dimethyl Fumarate Allergies Home Remedies for Pollen Allergies How to Get Rid of Post Nasal Drip How do I Clean After Eating to Protect Those With Peanut Allergies? How to Deal With an Anaphylactic Reaction What are some common winter allergies?