Can Post-Injection Pain Last a Week? Understanding When to Seek Help
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5 min read
According to the National Centre for Immunisation Research and Surveillance, large local injection site reactions can take up to a week to completely resolve, particularly after certain booster vaccines. But beyond these specific cases, many people wonder, “can post-injection pain last a week?” The duration of pain depends on a variety of factors, from the type of injection to individual immune responses and potential complications.