Flu will often get better on its own, but it can make some people seriously ill. It's important to get the flu vaccine if you're advised to.
Flu symptoms come on very quickly and can include:
- a sudden high temperature
- an aching body
- feeling tired or exhausted
- a dry cough
- a sore throat
- a headache
- difficulty sleeping
- loss of appetite
- diarrhoea or tummy pain
- feeling sick and being sick
The symptoms are similar for children, but they can also get pain in their ear and appear less active.
If you have flu, there are some things you can do to help get better more quickly.
Flu is very infectious and easily spread to other people. You're more likely to give it to others in the first 5 days.
Flu is spread by germs from coughs and sneezes, which can live on hands and surfaces for 24 hours.
To reduce the risk of spreading flu:
- wash your hands often with warm water and soap
- cover your mouth and nose with a tissue when you cough or sneeze
- bin used tissues as quickly as possible
Try to stay at home and avoid contact with other people if you have a high temperature or you do not feel well enough to do your normal activities.
Flu vaccines are safe and effective. They're offered every year on the NHS to help protect people at risk of flu and its complications.
The best time to have a flu vaccine is in the autumn before flu starts spreading. But you can get vaccinated later.