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How do allergy shots for asthma work?

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Allergy shots may help people who have asthma that’s triggered by allergies, called allergic asthma. The shots don’t cure asthma the way antibiotics might cure an infection. Instead, they’re more like a vaccine.

The shots contain a small amount of an allergen (something you're allergic to). Over time, the dose in your shots rises. You’re exposed you to more of the allergen, so your body is likely to become tolerant to it. The shots can ease allergy symptoms and prevent the development of asthma.

From: Allergy Shots for Asthma WebMD Medical Reference

SOURCES: American Academy of Asthma, Allergy, and Immunology: "Tips to Remember: What are Allergy Shots?"  Grayson, M. and Holtzman, M. 2005.  Stokes, J. and Casale, T. , 2006. Johns Hopkins Medicine: "Sublingual Immunotherapy."



ACP Medicine,American Journal of Medicine

Reviewed by Dan Brennan on August 18, 2019

SOURCES: American Academy of Asthma, Allergy, and Immunology: "Tips to Remember: What are Allergy Shots?"  Grayson, M. and Holtzman, M. 2005.  Stokes, J. and Casale, T. , 2006. Johns Hopkins Medicine: "Sublingual Immunotherapy."



ACP Medicine,American Journal of Medicine

Reviewed by Dan Brennan on August 18, 2019

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What kind of testing is needed before getting allergy shots for asthma, and what kinds of allergens do they cover?

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