Like most medications, there is the risk of possible side effects from getting vaccines, according to the Centers for Disease Control and Prevention.
The CDC says that most side effects children experience after vaccinations are mild. Many of these include soreness, redness or swelling at the site of the injection. The CDC says these effects usually go away within a couple of days.
More severe reactions to vaccinations – including severe allergic reactions – are very rare, according to the CDC. You should seek medical attention if your child suffers from a severe side effect.
The CDC recommends that you watch closely for side effects for a few days after your child receives vaccinations.