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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I asked the pharmacist this question. He said that he changes the needle after piercing the vaccine bottle top. The second thing was to allow the alcohol to dry. He said that his last vaccine hurt. The alcohol was not yet dry.
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