Hand, foot, and mouth disease is a common pediatric condition caused by an intestinal viral infection. It is a febrile rash disease and classified as an infectious disease with relatively strong infectivity. Therefore, when diagnosed with hand, foot, and mouth disease, it is important to isolate the affected child. Children who attend daycare or school should stay at home and must not go to school. Secondly, active treatment is necessary. Since hand, foot, and mouth disease is caused by a viral infection, antiviral medications should be administered to the child. If the body temperature exceeds 38.5°C, antipyretic medications such as ibuprofen suspension should be taken. At the same time, care for the mouth and skin should be maintained. The oral area is relevant because of the potential for herpetic pharyngitis, which can make swallowing painful and uncomfortable for the child, affecting their eating. Therefore, local throat relief sprays may be used. Additionally, skin care is important as the rash and occasionally blisters appear on the skin, thus skin care should be conducted to prevent infections. (The use of medications should be under the guidance of a professional doctor.)