Flu Jab Side Effects: What to Expect After Vaccination
Getting the flu vaccine is one of the most effective ways to protect yourself from seasonal influenza, but it’s natural to wonder about possible flu jab side effects. The good news is that most reactions are mild, short-lived, and a sign that your immune system is responding as it should. If you’re looking for clear, straightforward guidance, this guide will help you understand what to expect. Why Do Flu Jab Side Effects Occur? Flu jab side effects occur because the vaccine triggers your immune system to build protection. This response can cause mild, temporary symptoms. According to the NHS, most flu jab reactions resolve within 24–48 hours. Common Flu Jab Side Effects You May Experience Most people experience only very mild symptoms after a flu jab. Here are the most common reactions reported: Sore Arm or Injection Site Pain A sore arm is the most frequently reported side effect of the flu jab. It happens because you...