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A member asked:

I had a tetanus shot and now a few days later i have a big lump on my arm and its red and hurts?

1 doctor answer1 doctor weighed in
Dr. Troy Ross
Occupational Medicine 26 years experience
An expected reaction: A sore red area at the site of a vaccination is what happens when your healthy immune system reacts to the shot. It should only last 2-3 days.
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Last updated Jun 16, 2013


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