After your immunisation - HE2505

June 2020
This resource relates to the following topics:

Information for teenagers and adults about what may happen after they are immunised, and what they can do to help with any symptoms.

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June 2020
December 2018
A5 pad of 25 leaflets
HE code

The full resource:

How you may feel after the immunisation and what can help

Serious immunisation reactions are very rare. Some people can get reactions that are the body's normal response to immunisation. These usually go away after a day or two, and are set out in the table below.

What you may feel What can help When this could start

Swelling and pain at the injection site (hard and sore to touch)

Heavy arm

Place a cold, wet cloth, or ice pack where the injection was given. Leave it on for a short time

Do not rub the injection site

Within 6–24 hours 

Feeling unwell or tired

A fever or aching muscles*

Rest and drink plenty of fluids

Because paracetamol or ibuprofen can interfere with your immunse response to a vaccine, only take them for relief of significant discomfort or high fever. Follow the manufacturer's instructions, or seek advice from your health professional

Within 6–24 hours 
MMR vaccine only – a rash and fever (very rare) No treatment is required. The rash is not infectious. Between 5 and 12 days after immunisation

* These symptoms may not be related to the vaccine, and could be signs of an unrelated illness. Seek medical advice if you are concerned.

If you have any concerns, talk to your family doctor or practice nurse, or call Healthline on 0800 611 116.

It is important to report any unexpected symptoms after immunisation to your family doctor or the practice nurse. If you are unsure about whether a symptom might be related to a vaccine, discuss this with your family doctor or the practice nurse.

Health professionals should report unexpected reactions to the Centre for Adverse Reactions Monitoring (CARM). You can also report them by emailing CARM or using the online reporting form on the CARM website

Code: HE2505.