What is the reason for fever after rabies vaccination?

Patient's question:

Patient Age: Eight years old
Condition Description: My daughter is eight years old. She received the rabies vaccine shot at 11 a.m. It is now 11:30 p.m., and her temperature is 38.6°C. Should she take fever-reducing medication?
Previous Treatment and Effect: Received the rabies vaccine shot at 11 a.m.
Help Needed: Urgent response is required now.

Doctor's answer:

Hello, your daughter developed a fever at night after receiving the first dose of the rabies vaccine, with a temperature of 38.1 degrees Celsius. If there are no other symptoms such as lethargy or weakness, you can first take fever-reducing medication to see if it helps. Now that it's daytime, you can go to the local hospital for a check-up and consultation.
Advice: Your daughter has developed a fever after receiving the rabies vaccine. For the nighttime fever, you can use fever-reducing medication as a temporary measure. Now that it's daytime, it is recommended to visit the local hospital promptly. Based on the actual condition, timely symptomatic treatment such as fever reduction should be administered.