shortness of breath, chest pain, leg swelling or persistent abdominal pain.new, unexplained pinprick bruising or bleeding.an unusual headache which seems worse when lying down or bending over or may be accompanied by.a new, severe headache which is not helped by usual painkillers or is getting worse.If you experience any of the following from around 4 days to 4 weeks after vaccination you should seek medical advice urgently: Because of the high risk of complications and death from COVID-19, the Medicines and Healthcare products Regulatory Agency ( MHRA), the World Health Organization and the European Medicines Agency have concluded that the balance is very much in favour of vaccination. There have been reports of an extremely rare condition involving blood clots and unusual bleeding after the AstraZeneca and Janssen vaccines.
Are there other more serious side effects? You can also report suspected side effects of vaccines and medicines online through the Yellow Card scheme or by downloading the Yellow Card app. 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. If your symptoms seem to get worse or if you are concerned, call NHS 111. These symptoms normally last less than a week. What to do if you are concerned about your symptoms If you are due for a mammogram in the few weeks after the vaccine, then you should mention that when you attend. This can last for around 10 days, but if it lasts longer see your doctor. You can rest and take the normal dose of paracetamol (follow the advice in the packaging) to help make you feel better.Īn uncommon side effect is swollen glands in the armpit or neck on the same side as the arm where you had the vaccine. However, a high temperature could also indicate that you have COVID-19 or another infection. You may also have flu like symptoms with episodes of shivering and shaking for a day or two.
Very common side effects in the first day or two include: The very common side effects are the same and should still only last a day or two. Most of these are mild and short-term, and not everyone gets them. Like all medicines, vaccines can cause side effects. This leaflet tells you what to expect after you have had your primary or booster vaccination. People who are most at risk from the complications of coronavirus (COVID-19) are being offered the COVID-19 vaccination.