Do not take medication, especially hormonal and immunosuppressive drugs, before or after vaccination. People with acute or chronic illnesses, such as fever or cold, should treat their illnesses first. After vaccination, the body produces an immune response, which leads to the production of antibodies related to the new coronavirus. Along with the immune response, the body may also experience some adverse reactions, such as mild fever and malaise. In the 24 to 48 hours before and after vaccination, medications, especially hormonal and immunosuppressive drugs, should be avoided to avoid drugs affecting the function of the immune system or causing allergic reactions in the body. In addition, the acute exacerbation of the disease is a contraindication to the new crown vaccination, and should be waited until the disease has improved before vaccination.