The phenomenon of rapid heart rate after vaccination with the new coronary vaccine, if it is caused by excessive tension, the symptoms will usually disappear after emotional calming, if it is caused by coronary heart disease, hyperthyroidism and other diseases. You can follow the doctor’s instructions to use aspirin, propylthiouracil and other drugs for treatment. 1. Excessive nervousness: Most people may experience excessive nervousness after receiving the new coronary vaccine, which is manifested by a rapid heart rate. After rest, if the heart rate gradually returns to normal, no special treatment is usually needed. 2. Coronary heart disease: You should go to the regular hospital in time to improve the electrocardiogram, heart ultrasound and other examinations to clarify whether the heart rate is too fast due to coronary heart disease. Thromboxane A2 inhibitors, such as aspirin and other drugs, can be selected for treatment under the advice of the doctor. 3. Hyperthyroidism: If hyperthyroidism is the cause of the rapid heart rate after the injection of the new coronary vaccine. The hyperthyroidism can be treated with medications recommended by your doctor. Common medications include propylthiouracil tablets. You should stay at the site for more than 30 minutes after the new coronary vaccine is administered to ensure that you are not unwell before leaving. A rapid heart rate requires an electrocardiogram and other tests to confirm the cause of the disease and to treat it aggressively. The use of medication should be standardized under the guidance of a doctor and should be reviewed regularly.