Question
How to handle the lump that appears on a baby’s arm after receiving a preventive injection?
Answer
After children receive the DPT (diphtheria, pertussis, tetanus) vaccine, common adverse reactions include redness, swelling, pain, and hard lumps at the injection site, as well as possible fever. The redness at the injection site usually subsides within a week, but the hard lumps may take a month or longer to disappear. If parents notice a lump at the injection site on their child, they should apply cold compresses, observe the wound, and record their child’s reactions. If necessary, they should bring their child to the hospital for examination and treatment promptly. Additionally, parents should regularly take their children for physical examinations and use medications correctly under a doctor’s guidance to maintain their child’s health.