2. Soreness, Redness or Swelling at the Injection Site
Most people who have just had an injection, vaccination, or shot of any kind will experience some mild tenderness, redness, or swelling in the site where the injection took place – it’s also not uncommon to experience slight bruising that usually goes away a couple of days after the injection.
People might have varying views about how they feel when it comes to tattoos, but the body simply doesn’t like being poked and prodded with a needle – and any poking or prodding will be responded to by the body. This is just your body’s way of protecting the injection site from any infection: In this case, the swelling is the body’s way of ensuring that no infection can enter through the injection site.
Even a drop or two of blood is common with injections and shots – for this, some cotton pressed onto the injection site for a few minutes should do. If bleeding is more severe than expected, make an appointment with your doctor.