To prevent myocarditis, it is necessary to prevent respiratory infections, gastrointestinal infections, etc., and pay attention to exercise to strengthen the immune system. When respiratory or gastrointestinal infections worsen with chest tightness and palpitations, it is necessary to go to the hospital in time. Myocarditis and viral infections are related, the virus erodes the heart muscle and damages the heart muscle, if you can prevent respiratory and gastrointestinal infections and thus prevent viral infections, you can avoid myocarditis. The best way to prevent viral infections is to maintain a healthy lifestyle, abstain from smoking and drinking, have balanced nutrition, exercise appropriately, and enhance immunity. If a cold, diarrhea, or fever occurs, take rest and pay close attention to changes in your condition. If the symptoms worsen, to the hospital in time, symptomatic treatment, control the condition, to avoid damage to the myocardium, the occurrence of heart failure, malignant arrhythmia and other severe myocarditis conditions. There is no medication to prevent myocarditis, it is recommended to live a healthy lifestyle and enhance immunity. If the condition changes, it is necessary to go to the hospital in time to clarify the condition and actively diagnose and treat.