Hand, foot, and mouth disease is a common infectious disease during childhood, characterized by rashes on the hands, feet, and around the mouth as described by its clinical symptoms. Concurrently, with the red rashes, there are symptoms such as fever. In children, vesicles in the throat can cause severe sore throat. These are the common symptoms of hand, foot, and mouth disease. Since hand, foot, and mouth disease is caused by a viral infection, some children may experience myocarditis-like symptoms such as chest tightness, fatigue, and shortness of breath due to the virus affecting the myocardium, or present symptoms of myocardial damage. These are common clinical symptoms of hand, foot, and mouth disease.