Some people may experience side effects after the vaccine. These are usually mild and are much less serious than developing coronavirus or complications associated with coronavirus. Any side effects usually go away within a few days.
After you get the vaccine, it’s still important to follow the latest government guidance.
Common side effects
Some of the common side effects of the coronavirus vaccine may include:
- tenderness, swelling and/or redness at the injection site
- muscle ache
- feeling tired
- fever (temperature above 37.8°C).
A less common side effect is swollen glands in the armpit or neck, on the same side as the arm where you had the vaccine.
This can last for around 10 days, but if it lasts longer see your doctor.
If you are due for breast screening (a mammogram) then you should mention that you have had the vaccine when you attend.
If you feel uncomfortable, take paracetamol. Make sure you take paracetamol as directed on the label or leaflet.
If you’re worried about your symptoms, phone NHS 24’s 111 service.
It is important to get 2 doses of the vaccine, even if you have mild side effects after the first dose.
Fever after the coronavirus vaccine
It’s quite common to develop a fever after a vaccination. This normally happens within 48 hours of the vaccination and usually goes away within 48 hours.
You do not need to self-isolate or book a test unless you have other coronavirus symptoms or:
- you have been told by NHS Test and Protect, or your occupational health team, that you are a close contact of someone who has tested positive for coronavirus
- you live with someone who has recently tested positive for coronavirus
- you live with someone who has symptoms of coronavirus
the fever starts more than 48 hours after the vaccination or lasts longer than 48 hours, you should self-isolate and book a test.
Side effects of the Pfizer/BioNTech vaccine
A full list of common side effects of the Pfizer/BioNTech vaccine is available on GOV.UK.
Side effects of the AstraZeneca vaccine
A full list of common side effects of the AstraZeneca vaccine is available on GOV.UK.
Following some countries suspending the use of the AstraZeneca coronavirus vaccine over suspected blood clots, the Medicines and Healthcare products Regulatory Agency (MHRA) has confirmed that the benefits of the vaccine in preventing coronavirus far outweigh the risks.
People should still go and get their coronavirus vaccine when asked to do so.
While the MHRA continues to investigate these cases, as a precautionary measure, it advises anyone with a headache that lasts for more than 4 days after vaccination, or bruising beyond the site of vaccination after a few days, to seek medical attention.
Can I catch coronavirus from the vaccine?
You cannot catch coronavirus from the vaccine but you can catch it before you get your vaccine and not know you’ve got it until afterward.