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allergy shots :: Article Creator Are Allergy Shots Worth It? Nearly a third of American adults have some kind of allergy. If you're one of them, you're probably eager to find a solution. Allergy shots can provide long-lasting relief for certain non-food allergies, but there are some downsides. Is the time commitment, discomfort, and cost worth it? To help make that decision, here's the latest science behind allergy immunotherapy, how long the effects of the shots last, and what the future of allergy shots may hold. How do allergy shots work? Allergy shots have been around in one form or another since the 1910s. The idea is to desensitize an allergic person to a specific allergen, like pollen or cat dander. Your allergist will determine exactly what you're allergic to and then "they make a specialized cocktail of allergens for that person," says Dr. David Morris, chief of allergy and immunology at Dayton Child...