Protect Yourself and Others & Book Your Flu Vaccine Today

Understanding the flu vaccine With A simple guide

The flu virus changes each year. The vaccine helps reduce the risk of severe illness, protects vulnerable people, and lowers the spread of infection. Both NHS-funded and private flu vaccinations are available following a short consultation with a trained healthcare professional. Clinics follow set criteria before offering any vaccination.

Important checks

Tell a clinician if:

  • You have a weakened immune system

  • You have had a serious allergic reaction to a vaccine before

  • You have a severe egg allergy (some flu vaccines may not be suitable)

  • You are unwell with a high temperature on the day of your appointment

  • You are pregnant (you may be offered a specific vaccine type)

A clinician will confirm which type of flu vaccine is appropriate.

Who might be considered for vaccination

The flu vaccine is recommended for:

  • Adults aged 65 and over

  • People with long-term conditions such as asthma or diabetes

  • Pregnant individuals

  • Children aged 2–17

  • Frontline health and social care workers

  • Carers and people living with someone who is immunocompromised

Those not eligible for an NHS-funded vaccine may still receive a private vaccination after a consultation.

Flu vaccine: The basics

What it is

The flu vaccine helps your immune system recognise and fight the flu virus. It is updated yearly to match the most common circulating strains. It may be given as an injection or as a nasal spray, depending on age and eligibility.

How is it given

Adults usually receive an injection in the upper arm.
Children and young people are often offered a needle-free nasal spray that is quick to administer.

What people often notice

A brief appointment
A mild ache in the arm after the injection
Mild congestion if the nasal spray is used
A feeling of reassurance during the winter season

Common side effects

These are usually mild and short-lived:

  • Soreness, redness, or swelling at the injection site
  • A mild fever or aching muscles for 1–2 days
  • Nasal congestion or a runny nose (nasal spray)

Seek urgent help if you experience difficulty breathing, swelling of the face or throat, or if you feel very unwell after vaccination.

Types of flu vaccines

Injectable flu vaccine (adults)

Given in the upper arm. Suitable for most adults, including many with long-term conditions.

Nasal flu vaccine (children and young people)

Given as a gentle spray into each nostril.
Pros: quick, painless, and effective in children.
Cons: not suitable for those with weakened immune systems or severe egg allergies.

A clinician will advise which type is suitable.

Interactions and considerations

Tell your clinician if you take regular medicines, have ongoing health conditions, or have had reactions to vaccines previously. They may check your medical history before proceeding.

Flu and COVID-19 vaccines

Both vaccines can be given on the same day or separately. A clinician will advise on timing based on availability and your health needs.

When to seek help

Contact a clinician or seek urgent care if you experience severe allergic symptoms, difficulty breathing, or if you feel very unwell after vaccination.

Storage, travel, and disposal

Vaccines are handled and stored by trained clinicians. If you receive a take-home nasal vaccine for a scheduled dose, follow the instructions provided and keep it out of reach of children.

Stay safe

Only receive vaccines from regulated UK healthcare providers. Avoid unverified sources offering medicines or vaccines.

Everyday tips to stay protected

Wash hands regularly
Cover your mouth and nose when coughing or sneezing
Stay home if you feel unwell
Keep up to date with recommended vaccinations

Flu vaccine: Quick reference guide

A: Yes, for eligible groups

A: Yes, following a short consultation.

Mild effects such as arm soreness or low fever may occur

A: At any Imaan Healthcare branch.

DISCLAIMER:

This page is for information only. It explains how the flu vaccine is used and what to expect. It is not a replacement for a consultation. If you want to talk through your options, speak with a trained clinician.