Closing her book India just thought for a moment. Raising her hand she moved to answer the question, "Professor, an allergy is an immune response to something added to your local environment by either the scent of something or particles in the air or by eating it. Typically it can be damaging however the damage level is also dependent on how severely your body typically responds to said thing." Yes she knew allergies. Her brother was allergic to Cucumbers of all things.