As with all medicines, side effects of the flu vaccine are possible, but usually mild.
These potential side effects are much less serious than developing flu or complications associated with flu.
Common side effects of the flu vaccine may include:
If you are concerned about yourself or anyone else in your household who is unwell following a vaccination, phone NHS24 on 111.
It is quite common to develop a fever (temperature 38°C or above) after a vaccination. This would normally happen within 48 hours of the vaccination and usually goes away within 48 hours.
You do not need to self-isolate or book a coronavirus test unless you have other coronavirus symptoms or if you have been advised to by:
If the fever started 48 hours after the vaccination or continues beyond 48 hours from the time of the vaccination, you should self-isolate and book a test.
For more information about the latest advice visit our coronavirus pages or phone 0800 030 8013.
More information on the possible side effects of the flu vaccine is available in the Patient Information Leaflets:
You can report suspected side effects of vaccines and medicines through the Yellow Card Scheme.
This can be done by:
If you’re unsure about anything or have any questions about the flu vaccine, speak to a health professional, such as your immunisation nurse, practice nurse or GP.
Don’t include personal information e.g. name, location or any personal health conditions.