If you suddenly feel your heart beating fast and your pulse or heart rate exceeds 100 beats per minute, then consider tachycardia. If you are at home, first of all, calm down and rest, do not exercise strenuously, you can take some self-relief methods, such as breath-holding method, that is, let the patient take a deep breath and then hold the breath, and then exhale forcefully. You can also induce vomiting by stimulating the throat with your fingers, which can reflexively cause the heart to slow down. Other ways to relieve rapid heartbeat are to press the eyeballs, but self-relief methods still have certain risks and must be strictly controlled by the indications. Rapid heartbeat and accompanied by obvious symptoms such as panic, chest tightness, it is best to go to the hospital as soon as possible, usually in the hospital is mainly given oxygen, medication, and other commonly used drugs such as Betalucil to slow down the heart rate.