Allergen immunotherapy is a treatment for allergies. It involves exposing the patient to small, increasing doses of an allergen. This helps to build up tolerance to the allergen. Building up tolerance reduces or eliminates allergy symptoms and leads to immunomodulation.
How does allergen immunotherapy work?
Allergen immunotherapy works by introducing gradually increasing amounts of the allergen into a patient’s immune system. This is done on a regular schedule, until a maintenance level is reached. Tolerance for the allergen typically continues after immunotherapy ends. However, the long-term success rate varies from person to person.
In sublingual immunotherapy the drops are placed under the tongue for one to two minutes and then swallowed as they dissolve. The process is repeated from three days a week to as often as daily. The drops taken will increase your tolerance to the allergen and reduce your symptoms over time. For continued effectiveness, treatment may be needed for three years or longer.
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