Welcome to VAPA - Information Center - Health Risks / Allergy Shots (Immunotherapy)

Last Updated: 12/7/2006

Mold Spore

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Health Risks: Allergy Shots (Immunotherapy)

Immunotherapy or "desensitization" or "allergy shots" involves a program of injections to reduce the patient's reactivity to environmental allergens. Patients receive carefully measured amounts of only those allergens to which they are allergic with the end result being a reduction in their reactivity upon re-exposure. Studies have shown an 80-85% improvement rate in those patients with allergic rhinitis or hayfever. Studies also have shown success in treating seasonal asthma related to grass pollen and perennial asthma related to cat and dust mite allergy. Patients will report a reduction in symptoms as well as reduced use of medication. When properly administered to selected patients, immunotherapy can provide relief from both allergic rhinitis and asthma symptoms. Studies are currently underway allowing the administration of immunotherapy via intranasal sprays. This offers additional hope for easier and improved therapy in the future.