In the presence of fulminant myocarditis, the prodromal symptoms of upper respiratory tract infection such as high fever, cough, and malaise may be present. Abnormal symptoms such as dyspnea, wheezing, chest pain, and palpitations can occur suddenly, often in combination with acute heart failure. Consider applying diuretic drugs to reduce the load on the heart, such as furosemide and torasemide, as well as vasodilators, such as nitrates, etc. Early application of angiotensin-converting enzyme inhibitors can effectively prevent the development of ventricular remodeling, such as captopril. If malignant arrhythmias are present, anti-arrhythmic drugs, such as amiodarone injection, can be considered. After viral genetic testing, treatment with specific antiviral drugs, such as oseltamivir, etc., and gammaglobulin injections to improve immunity, etc., should be applied.