Question
After my child received the AC meningitis vaccine, there were more than a dozen red spots similar to mosquito bites under the knees of both legs down to the ankles. Could these be reactions caused by the vaccine?
Answer
After receiving the AC meningitis vaccine, children may experience redness, swelling, heat, and pain at the injection site, sometimes accompanied by lymph node enlargement or lymphangitis. These symptoms usually appear within a few hours to 24 hours after vaccination and may resolve on their own within 1-2 days. Additionally, some children may experience varying degrees of fever as a normal reaction when the vaccine is introduced as a foreign body into the body. Based on the description, the red spots on the child’s legs could be one of the common reactions after vaccination. If the child does not have other discomfort symptoms, no special treatment is generally required; just observe whether the symptoms resolve on their own. If symptoms persist or worsen, it is recommended to seek medical attention promptly.