Allergies happen when your immune system reacts to substances called allergens. Allergens are not harmful in an of themselves, but the body’s reaction to them can create significant symptoms. This can result in mild symptoms like sneezing or more severe reactions, including difficulty breathing or drop in blood pressure. TotalCare is available around the clock at nine locations across North Texas, providing timely assistance during allergic emergencies to ensure the community's well-being and safety.