Vaccination can be given a week after the fever has been cured and there is usually no effect. When a child has a fever, the body quality will be reduced and the immunity will be low. Vaccination will cause an increase in body temperature and even adverse reactions such as rash and abdominal distension. When a child has a fever, he can take pediatric aminophenanthramine granules orally, which can treat and relieve the symptoms of fever caused by common cold and influenza. Combine with Chinese medicines such as Blue Scutellaria Oral Liquid and Pudilan Anti-inflammatory Oral Liquid to clear heat and detoxify the toxins. If the child’s temperature exceeds 38.5 degrees, he can take oral antipyretic and analgesic drugs such as ibuprofen suspension, which can play a fast role in reducing fever. Combined with the Chinese medicine Antelope Jiao Jiao punch, it can prevent convulsions caused by high fever. Children with fever need to drink more water, pay attention to rest, take vitamin C supplements, and try to avoid going to places with a lot of people to prevent cross-infection.