Myocarditis currently has no specific treatment and mainly focuses on supportive treatment for left ventricular dysfunction. Patients should avoid exertion and rest appropriately. In cases of heart failure, diuretics, vasodilators, and other drugs such as H1 may be used as needed. If rapid arrhythmias occur, antiarrhythmic drugs should be administered. For high-degree atrioventricular block or sinoatrial node dysfunction that causes syncope or significant hypotension, the use of a temporary pacemaker may be considered. Moreover, clinically, drugs that promote myocardial metabolism, such as adenosine triphosphate, coenzyme A, adenylic acid, etc., should be used. Treatment should also target the underlying causes of myocarditis.