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Girl receiving immunisation on her right shoulder


Immunisation protects children against harmful infections that they may come into contact with. Immunisations use the body's immune response—its natural defence mechanism—to build up resistance to specific infections.

Side Effects of Immunisation

Some children may experience minor side effects from immunisation such as:

  • soreness at the injection site
  • mild fever
  • irritability

An analgesic like Children’s Advil can help provide your child relief from the pain. It can also help reduce fever from immunisation for up to 8 hours.