Children and adults with allergic rhinitis, allergic asthma, and conjunctivitis can benefit from allergy treatment known as “immunotherapy,” or allergy shots. Allergy shots work similarly to immunizations, where the body is given an injection of an allergen, and develops immunity or “tolerance” to that allergen. These shots can relieve allergy symptoms and lessen a person’s sensitivity to the allergen. With allergy shots, you will receive an injection of a small concentration of the responsible allergen. Over weeks to months, the concentration of the allergen will be increased until the body develops enough of a tolerance that it will not react to the allergen the way it used to.
Video courtesy of American Academy of Allergy Asthma & Immunology