What Is Immunotherapy?

Allergy shots, or immunotherapy is a process by which small amounts of allergens are injected into the blood stream and gradually increased over a period of years until the person's tolerance to the allergen increases and the symptoms decrease. Usually people who have year-around allergies or who do not respond to usual medications are recommended for immunotherapy. Allergy shots work best for those with inhaled allergies or insect stings, but not with those who have food allergies.

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