What to expect after your Flu Vaccine

What to expect after your Flu Vaccine

Getting your flu vaccine means you have protected yourself and others against a tenacious virus that is problematic for some and deadly for those most at-risk.

It will take around 2 weeks for you to be fully immunised, and during this period it is still possible to contract the flu virus. For this reason, we advise getting the vaccine early (prior to the flu season if possible). We also advise that you maintain hygiene practices to limit the spread of cold and flu viruses.

Potential side effects of the ‘Flu vaccine include:

  • General fatigue and feeling unwell
  • Soreness, swelling and/or redness at the injection site
  • A lump at the injection site (which can last a few weeks)
  • Muscle and joint ache
  • A mild fever
  • Headache

These are all symptoms of the body responding to, and fighting, the inactivated flu virus. The majority of symptoms reported self-resolve within a few days, though you may take over-the-counter painkillers or apply a cold compress to the injection site if required. It is extremely rare to have an allergic reaction to the flu vaccine, and if/when this does happen, it happens very quickly and requires immediate attention.

If you have any concerns regarding side effects of the flu vaccine you may also talk to your G.P, nurse or pharmacist.

Looking ahead

The flu virus is unpredictable; it changes over time and different strains emerge. You are advised to get your flu vaccine each year to ensure you have the best protection against the current circulating strains.