How does the nasal spray work?

How does the nasal spray work?

The nasal spray contains viruses that have been weakened to prevent them from causing flu but will help your child to build up immunity. When your child comes into contact with flu viruses they will be better able to fight off the infection.

The vaccine is absorbed quickly in the nose so, even if your child sneezes immediately after having had the spray, there’s no need to worry that it hasn’t worked.