Acute myocarditis generally means that signs and symptoms, especially cardiac symptoms, appear rapidly within 2 weeks and should be treated according to the patient’s condition. Acute myocarditis starts rapidly, progresses rapidly, and symptoms appear quickly, especially some serious cardiac symptoms appear early and therefore need to be treated promptly. The treatment of acute myocarditis should be closely integrated with the patient’s condition and targeted treatment. In general, two main treatment options can be divided into adjuvant supportive therapy and targeted therapy. Depending on the clinical manifestations of patients, different treatment options should be adopted: patients with no symptoms or mild symptoms should reduce physical activity and rest; if accompanied by symptoms of upper respiratory tract infection such as fever, fatigue, muscle aches or gastrointestinal symptoms such as nausea, vomiting and diarrhea, symptomatic treatment can be given and such acute myocarditis can recover on its own in about 1 week-2 weeks; for patients with cardiac symptoms or Patients with cardiac symptoms or previous heart disease or other systemic diseases often need to be hospitalized, and such patients need to be strictly monitored for vital signs and improved laboratory and ancillary tests related to acute myocarditis and the heart. Patients with severe myocardial damage, serious clinical symptoms or previous underlying diseases need to be closely observed in the monitoring unit and targeted treatment plans should be formulated to prevent malignant arrhythmias, acute heart failure, shock, sudden death, etc. Acute myocarditis has a rapid onset and symptoms appear quickly, requiring acute targeted treatment under the guidance of an experienced specialist for the different conditions of the patient. Patients with mild cases can rest, while patients with severe cases or with pre-existing underlying cardiac disease need to be hospitalized under medical supervision.