Myocarditis can recur. Clinically, myocarditis is mainly due to inflammatory lesions of myocardium caused by bacterial, fungal, viral infections, or by drugs, poisons, radiation, connective tissue diseases and other factors. Usually, after taking drugs for treatment, the effect of clinical cure can be achieved; however, when re-infected with viruses or contact with poisons and radioactive substances, it will also cause the recurrence of myocarditis, so after the clinical cure, it is necessary to do a good job of their own care work. After the onset of myocarditis, fever, nausea, chest pain, dyspnea and other uncomfortable symptoms will usually appear, and in severe cases, it will lead to fainting, sudden death and other serious life-threatening symptoms; therefore, it is necessary to improve the endocardial myocardial biopsy, echocardiography and other tests under the guidance of the doctor to make a clear diagnosis and then carry out the treatment. If myocarditis is caused by viral infection, antiviral drugs such as acyclovir and famciclovir can be selected under the guidance of a doctor for treatment; in addition, drugs that promote myocardial metabolism, such as adenosine triphosphate, coenzyme A and cyclic adenosine monophosphate, etc., can also be applied in conjunction with the treatment. After the recurrence of myocarditis, it is recommended to consult cardiovascular medicine in time to avoid delaying the best treatment time.