Myocarditis is an inflammatory disease that occurs in the myocardium, which can have focal or diffuse inflammatory infiltrates with varying degrees of necrosis or degeneration of adjacent myocardial cells and is generally curable. Approximately 50% of patients improve after 2-4 weeks and have a good prognosis. If not treated promptly, about 25% of patients may develop persistent cardiac insufficiency, and very few patients progress to dilated cardiomyopathy or die. Myocarditis can be clinically divided into two types, acute myocarditis and chronic myocarditis. Acute myocarditis has an acute onset, the condition is more serious, the onset requires absolute bed rest, and in the event of heart failure, the patient needs to take a telescopic position, i.e., the patient sits on the bed with a soft pillow under the legs, leans forward slightly, and ambles across the bed on a small table, in order to reduce the amount of return blood and reduce the heart load, and promptly call 120 and send to the hospital for treatment. The main thing is to give cephalosporin or macrolide antibiotic line anti-infection treatment, serious cases need to use ventilator. Chronic myocarditis is mainly caused by overexertion and viral infection. In addition to antiviral medication, the most important thing is to strengthen daily conditioning, pay attention to the combination of work and rest, keep your mind relaxed, participate in your favorite cultural and recreational activities and sports activities, and ensure enough effective sleep. If you feel tired, it is recommended to stop the current activity and rest immediately. In addition, after active treatment and conditioning, patients with myocarditis need long-term follow-up. For patients with persistently elevated cardiac enzymes, a myocardial biopsy may be performed to clarify any abnormalities.