For example, many people stated that the second round of the COVID 19 vaccine hurt more than the first. Then people who went on to get the booster claimed that hurt more than the first and second covid vaccines. What exactly is making the vaccines itself hurt?
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Needle size, fluid amount, immune response, inflammation. Some people also have reactions not everyone does.
When I got a cortisone shot in my shoulder I had a response called a “steroid flare” which caused extra pain and discomfort for days. Which is the opposite effect that it is supposed to have.
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