Is it normal to experience "heatiness" after receiving a quadrivalent influenza vaccine?

Oct 26, 2023 Source: Cainiu Health
Disease description:

Recently received a vaccine, but experienced "heatiness" afterward. Is it normal to have heatiness after receiving the quadrivalent influenza vaccine?

Doctor's answer (1)
Dr. Yang Ziqi
It is common to experience "heatiness" after receiving the quadrivalent influenza vaccine; this is a natural stress response of the body to the viral antigens. For a period following vaccination, mild discomforts such as fever, headache, and muscle aches may occur. Such reactions are normal and help regulate the body's immune function. Usually, no specific treatment is required—comfort measures like rest, staying hydrated, and taking oral anti-inflammatory medications can help alleviate these side effects. However, if severe symptoms such as coughing or high fever (above 38°C) develop after vaccination, prompt medical attention at a hospital is necessary to ensure personal health.