The Home Allergy Test is a first step to finding out if your symptoms might be caused by an allergy. The antibody Immunoglobulin E (IgE) plays a vital role in allergic reactions to many substances. By identifying specific IgE in your blood, this test can give an indication of your sensitisation to potential allergy triggers, called allergens. The Home Allergy Test analyses your body’s reaction to 290+ different allergens.