Vaccine pain in babies typically lasts for 1 to 2 days at the injection site. This is often characterized by pain or swelling.
Here's a breakdown of what you can expect:
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Duration of Pain/Swelling: According to the reference, pain or swelling at the shot site can last for 1 to 2 days in approximately 20% of children.
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Other Possible Reactions: While pain at the injection site is common, some babies may also experience a mild fever. The reference indicates that a mild fever lasting 1 to 3 days can begin 14 to 28 days after the shot in about 10% of children.
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How to manage discomfort: Acetaminophen or ibuprofen can be given for fever over 102° F (39°C).
