What to expect after your COVID-19 vaccination – GOV.UK
Like all medicines, vaccines can cause side effects. Most of these are mild and short-term, and not everyone gets them. Even if you do have symptoms after the first dose, you still need to have the second dose.
Although you may get some protection from the first dose, having the second dose will give you the best protection against the virus.
Very common side effects include:
- having a painful, heavy feeling and tenderness in the arm where you had your injection. This tends to be worst around 1 to 2 days after the vaccine
- feeling tired
- general aches, or mild flu like symptoms
Although feeling feverish is not uncommon for 2 to 3 days, a high temperature is unusual and may indicate you have COVID-19 or another infection. An uncommon side effect is swelling of the glands. You can rest and take the normal dose of paracetamol (follow the advice in the packaging) to help make you feel better.
These symptoms normally last less than a week. If your symptoms seem to get worse or if you are concerned, call NHS 111. If you do seek advice from a doctor or nurse, make sure you tell them about your vaccination (show them the vaccination card) so that they can assess you properly.
You can also report suspected side effects of vaccines and medicines online through the Yellow Card scheme or by downloading the Yellow Card app.
Can you catch COVID-19 from the vaccine
You cannot catch COVID-19 from the vaccine but it is possible to have caught COVID-19 and not realise you have the symptoms until after your vaccination appointment.
The most important symptoms of COVID-19 are recent onset of any of the following:
- a new continuous cough
- a high temperature
- a loss of, or change in, your normal sense of taste or smell (anosmia)
Although a mild fever can occur within a day or two of vaccination, if you have any other COVID-19 symptoms or your fever lasts longer, stay at home and arrange to have a test. Further information on symptoms is available on NHS.UK.
Can you go back to normal activities after having your vaccine?
You should be able to resume activities that are normal for you as long as you feel well. If your arm is particularly sore, you may find heavy lifting difficult. If you feel unwell or very tired you should rest and avoid operating machinery or driving.
You should avoid getting pregnant for 2 months after vaccination. Please read the detailed information available on NHS.UK
What to do next
Plan to attend your second appointment. You should have a record card with your next appointment written on it, for an appointment in 21 or 28 days time. It is important to have both doses of the same vaccine to give you the best protection.
Keep your record card safe and make sure you keep your next appointment to get your second dose.
What to do if you are not well for your next appointment
If you are unwell, it is better to wait until you have recovered to have your vaccine, but you should try to have it as soon as possible. You should not attend a vaccine appointment if you are self-isolating, waiting for a COVID-19 test or unsure if you are fit and well.
Will the vaccine protect you?
The COVID-19 vaccine that you have had has been shown to reduce the chance of you suffering from COVID-19 disease. Each vaccine has been tested in more than 20,000 people in several different countries and shown to be safe.
It takes a few weeks for your body to build up protection from the vaccine. Like all medicines, no vaccine is completely effective, so you should continue to take recommended precautions to avoid infection. Some people may still get COVID-19 despite having a vaccination, but this should be less severe.
Can you give COVID-19 to anyone if you have had the vaccine?
The vaccine cannot give you COVID-19 infection, and a full course will reduce your chance of becoming seriously ill. We do not yet know whether it will stop you from catching and passing on the virus, but we do expect it to reduce this risk. So, it is still important to follow the guidance in your local area to protect those around you.
To protect yourself and your family, friends and colleagues you still need to:
- practice social distancing
- wear a face mask
- wash your hands carefully and frequently
- follow the current guidance