The new crown vaccine is now mostly inactivated vaccine. After vaccination, a small number of people may experience uncomfortable symptoms such as headache, dizziness, nausea, fatigue, fever, muscle aches and loss of appetite. These symptoms are usually normal reactions after vaccination and are generally mild and can disappear on their own in 2-3 days without special treatment. However, if the symptoms persist or are severe, it is recommended to visit a hospital promptly. If a patient has a headache after receiving the vaccine, the first thing to consider is whether there are psychological factors, such as excessive psychological stress and tension in some people due to the first vaccination, which may lead to headache and make the patient believe that it is a side effect of the vaccine, so it is recommended that the patient should calm down and eat and rest normally. Usually, the headache will disappear after a few hours when the mind is relaxed. Secondly, if headache symptoms do exist, they can be relieved by supplementing sleep, suspending heavy physical work and highly stressful operations, such as driving and working at height. In addition, it is not recommended that patients take their own medications for pain relief to avoid conflicts between different medications and the new crown vaccine, which may cause adverse reactions. Usually, discomfort symptoms can disappear within 72 hours of the patient’s vaccination. If the patient still has discomfort symptoms such as headache and dizziness after 72 hours, it is recommended to contact the vaccination site to inform the doctor of the specific situation and take the next step.