Vaccination menu links

Chickenpox vaccine side effects

The most common side effect of the chickenpox vaccine is soreness and redness around the site of the injection. This happens in around one in five children and one in four teenagers and adults. A mild rash may develop in one in 10 children and one in 20 adults.

Serious side effects, such as anaphylaxis (a serious allergic reaction), are rare. They occur in around one in a million vaccination cases.

Although the varicella vaccine is not part of the routine NHS childhood immunisation schedule in the UK, it is in other countries, such as the US and Germany.

Millions of doses of the vaccine have been given and there is no evidence of any increased risk of developing a long-term health condition as a result of the vaccination.

Read more about vaccine side effects.

More about chickenpox vaccine's side effects

A Patient Information Leaflet (PIL) is included in the pack of each dose of vaccine which lists its potential side effects.

Read the PIL for the chickenpox vaccine.

Monitoring safety of vaccines

In the UK, the safety of vaccines is monitored through the Yellow Card Scheme by the Medicines and Healthcare products Regulatory Agency (MHRA) and the Commission on Human Medicines.

Most reactions reported through the Yellow Card Scheme have been minor, such as redness and swelling at the injection site, rashes, fever and vomiting.

Last Updated: 17/02/2022 16:01:41
The information on this page has been adapted by NHS Wales from original content supplied by NHS UK NHS website