Immunotherapy has been proven as a successful treatment for allergies. It uses the patient’s immune system to fight off the “threat” and subsequently make the immune system stronger. Immunotherapy for allergies involves the patient receiving allergy shots a few times per year. The shots contain a small amount of the allergen – causing the patient’s body to grow accustomed to it. It’s commonly used for patients who are allergic to pollen, dust, grass, and bees.