Patients with myocarditis are advised to choose light, easily digestible, vitamin-rich foods (such as fresh juices, vegetables, eggs, fresh milk, fish and meat, pasta soft rice, etc.), and to gradually resume normal meals in small amounts at each meal, according to the appetite of the child. Most cases of viral myocarditis have a history of upper respiratory tract infection or gastrointestinal infection 1 to 2 weeks before the onset of the disease or at the same time. In recent years, the incidence has gradually increased and is common in all ages, but it is more common in preschool and school-age children and occurs in the summer and fall. About half of the children have cold or gastrointestinal symptoms, such as fever, cough, nausea, vomiting, and general malaise, often accompanied by muscle pain and arthralgia, several days to 1-3 weeks before the onset of myocarditis. After the onset of the disease, the milder ones have no obvious conscious symptoms, only ECG changes, usually depression, pallor, weakness, excessive sweating, loss of appetite or nausea, vomiting, epigastric pain, etc. Older children may report dizziness, palpitations, chest tightness, shortness of breath (long outgassing), and discomfort or pain in the precordial region. The pediatric heart is highly susceptible to arrhythmias and even heart failure because of its low tolerance to hypoxia and ischemia. Pediatric heart failure generally starts rapidly and progresses rapidly, with some experiencing respiratory distress within minutes, along with vomiting, irritability, excessive sweating, pallor, cyanosis, cold extremities, rapid and weak pulse, and rales on auscultation of the lungs. At this point, the child’s life is likely to be in danger if he or she is not seen in time. Children have a poor sense of self-protection, and they run, play, and play during illness, which can increase the burden on the heart and further aggravate the cold and induce myocardial damage, or even develop into myocarditis. For children with toxic myocarditis, it is important to take care of them using the careful care method because there are no special medical measures available. As a parent of a child with toxic myocarditis, pay attention! In the acute phase, bed rest should be taken to reduce the burden of heart function and to reduce the oxygen consumption of the heart muscle; in mild cases and general cases, rest should be taken for 3 or 4 weeks, for seriously ill children with cardiac insufficiency or heart enlargement. In the acute stage, the child should rest in bed to reduce the burden of heart function and oxygen consumption of the heart muscle; in mild cases and general cases, the child should rest for 3 or 4 weeks, and in severe cases with cardiac insufficiency (enlarged heart), the child should rest in bed for at least 3 months or after the heart function returns to normal or the enlarged heart returns, the child can gradually start to move from indoor to outdoor activities and gradually increase the amount of activities. If the response is good, school-age children can continue to go to school and do not need to be bedridden for months and months. Patients with myocarditis should choose light, easily digestible, vitamin-rich foods (such as fresh fruit juices, vegetables, eggs, fresh milk, fish and meat, pasta and soft rice, etc.), and gradually resume normal meals in small quantities at each meal according to the appetite of the child.