Question
The child’s left arm has appeared red and swollen. Could this be related to the vaccination?
Answer
Hello, based on your description, the red swelling on the child’s left arm is likely a normal reaction after vaccination. Especially if the child recently received the BCG vaccine, it is common for the injection site to develop redness and swelling about 2 weeks after vaccination. Subsequently, it may become purulent and form small ulcers, which will eventually scab over within 8 to 12 weeks. This process usually does not require special treatment, but the area should be kept clean to prevent secondary infection. If you have any concerns about the child’s condition, it is recommended to consult a professional doctor for more detailed guidance.