After the vaccination, some people will have a fever. How can they tell if it is the symptoms of the vaccination, rather than the fever that was caused by the covid-19 diagnosis, but did not know it?
The doctor said that the first fever after the vaccination usually occurs within 24 hours, and the fever occurs more than 24 hours later, which may not be directly caused by the covid-19 vaccine.
Second, it is the fever caused by the covid-19 vaccine, which usually does not exceed 48 hours. As long as the fever persists for more than 48 hours, you must seek medical attention as soon as possible to see if you are sick.
Third, the covid-19 vaccine will cause fever, but it will not cause obvious respiratory symptoms or other symptoms that are not related to the covid-19 vaccine.
Fourth, if after vaccination, not only fever, but also severe cough and runny nose, seek medical attention immediately to see if there are other infections.
Most of the possible reactions after vaccination are pain, redness and swelling at the injection site, which usually disappear within a few days. Other possible reactions include fatigue, headache, muscle aches, elevated body temperature, chills, joint pain and nausea, disappeared within days.
After vaccination, there may be fever (≥38℃), which can be relieved in about 48 hours. If fever persists for more than 48 hours, severe allergic reactions such as dyspnea, wheezing, dizziness, rapid heartbeat, body rash, etc., should Seek medical attention as soon as possible to clarify the cause of the disease, and inform the doctor that the vaccine has been vaccinated as a reference for diagnosis, and ask the doctor to report to the local health bureau or disease control department.