What should I do if I have chills after the nine-valent vaccine?

At this time, you can monitor your body temperature, if it does not exceed 38.5°C you can observe it first, it can usually drop on its own; when the temperature exceeds 38.5°C you can take non-steroidal anti-inflammatory drugs; but if there is a persistent high fever or accompanied by a rash, fluid and pus flowing from the inoculation site, or even difficulty in breathing, you need to consider the possibility of allergy and infection, and seek immediate medical attention.”