Hand, Foot, and Mouth Disease is a common infectious disease in children, treated with a combination of traditional Chinese medicine, oral medications, and mouthwashes. It typically resolves within a week with good prognosis, and antiviral medications can also be used. Recommendations include regular rinsing of the child’s mouth with warm water, avoiding cold and spicy irritant foods, and consuming easy-to-digest, light, soft, and warm foods. Preventive measures include isolating the sick child, strengthening health care for infants and young children, maintaining good air circulation in the living space, and keeping the temperature appropriate.