Question
My child had a fever of 38.6 degrees under the armpit on the third night after receiving the vaccine, with some warmth in the abdomen, accompanied by slight coughing and runny nose. Is this a cold or a reaction to the vaccine? What medication should I give them? How do I decide whether to take my child to the hospital for a detailed examination and treatment?
Answer
Some babies may experience a slight fever on the night they receive the vaccine or 1-2 days later. Sometimes, they may even have a fever or cold-like symptoms. This is an adverse reaction caused by the vaccine interacting with the body’s immune system. The fever temperature is generally below 38.5℃, lasting for 1-2 days, during which the baby’s ability to fight off diseases will increase. Make sure to give your baby plenty of water and ensure they get adequate rest. If the temperature exceeds 38.5℃, you can administer fever-reducing medication. If the baby’s temperature persists or if there are other symptoms, it is important to seek medical attention promptly.