*Children born between 1 September 2013 and 31 August 2015
Flu can be horrible for little children, and if they get it, they can easily spread it around the whole family.
Children with flu have the same symptoms as adults, including fever, chills, aching muscles, headache, a stuffy nose, a dry cough, and a sore throat lasting up to a week.
Some children develop a very high fever or complications such as bronchitis, pneumonia and a painful middle ear infection.
The children's flu vaccine is offered as a yearly nasal spray to young children to protect them against flu.
Don't put it off – ask your GP about the free flu nasal spray for your child.
The vaccine is given as a single spray up each nostril. Not only is it needle-free, the nasal spray is quick, painless, and just as effective as the injected flu vaccine.
From everything you need to know about the flu jab to coping with coughs and colds, find out how to stay healthy this winter on NHS Choices.