Question
After the baby received the vaccine, a hard lump was found at the injection site about a month and a half later. What could be the cause of this? Can they still receive the vaccine?
Answer
The hard lump found at the injection site after the baby received the vaccine is likely a common reaction following vaccination, usually due to regional inflammation or swelling at the injection site. Such a situation typically does not require special treatment and will not affect the next vaccination. However, for safety reasons, parents should closely monitor their baby’s condition after vaccination. If they notice that the redness, swelling, or hardness at the injection site worsens, they should consult a doctor promptly. Additionally, it is advisable to avoid soaking or massaging the injection site for a few days after vaccination to reduce irritation. If necessary, cold or hot compresses can be used to relieve swelling and pain. In summary, parents should follow the doctor’s advice and regularly bring their baby for vaccinations to protect their health.