If the patient has fever after vaccination, it is necessary to observe the fever type and the symptoms accompanying the fever at the same time, and then see whether treatment should be carried out. 1. If the fever is mild after vaccination, for example, if the body temperature is below 38℃, there is no need for treatment, it is a normal reaction of the body after vaccination, it is necessary to drink more water, pay attention to rest, and the patient can have a light diet. 2. If the body has a high fever and the body temperature is above 38.5℃, accompanied by obvious coughing and coughing, dizziness, headache and malaise, it is necessary to go to the hospital for routine blood tests to see if it is caused by viral infection in the body, and if the body is infected by the virus at this time, drugs such as oseltamivir can be taken for treatment. 3. If the fever persists after the vaccination, you can also take non-steroidal anti-inflammatory drugs, such as Enzyme, Merlin and other drugs for treatment.