Patients with HFMD will have diarrhea. HFMD is an infectious disease caused by intestinal viral infection, so there will be symptoms of diarrhea, and there can be fever, painful herpes in the throat and cheeks, and herpes in the hands, feet and mouth area. Treatment is based on antiviral therapy, which can be administered orally with antiviral oral solution or ribavirin granules, or intravenously with antiviral drugs in severe cases. At the same time, the child is given antipyretic treatment according to the fever, and physical cooling is given for low fever, and oral antipyretic drugs can be given when the body temperature is ≥38.5℃. At the same time, according to the child’s herpes, the application of open throat sword spray or ribavirin spray can be given for the spray treatment of herpes in the throat and cheek, which is conducive to the healing of herpes and can significantly relieve the pain. When the child has diarrhea, it can be treated with oral antidiarrheal medications such as Spleen-awakening and child-raising granules or montelukast. It is important to drink plenty of water during the disease to facilitate the healing of the disease.