Patient's question:
NoDoctor's answer:
A four-month-old infant can take Jian'er Qingjie Liquid and then receive the polio vaccine injection. If the child has a cold or fever, vaccination is not allowed, as it may affect the immune response, worsen vaccine side effects, and cause allergic reactions. It's acceptable to delay vaccination by a few days after the cold has improved, as this will not affect the immune response. Don't worry, and wish the baby a healthy growth.