Hand, foot and mouth disease is an infectious disease seen mainly in children under 10 years of age and more often in children as young as 3 years old, and is most dangerous on days 3-5. Initially, the child has symptoms such as fever, drooling and sore throat, which may gradually develop and cause herpes on the hands, feet and buttocks. The course of HFMD is usually 7-10 days, and it is most dangerous at the 3rd-5th days. Therefore, children infected with HFMD should be closely observed at an early stage and alerted once symptoms such as persistent high fever and vomiting appear, so that early detection and early treatment can be achieved to prevent serious complications. Most people with HFMD will be cured within a week or so. During this period, give your child more light and nutritious food, create a warm and comfortable environment for the patient, and combine it with antiviral medication, your child will recover quickly.