A 5-year-old girl had a fever of 38.5 degrees Celsius accompanied by small bumps on her hands. After drinking some traditional Chinese medicine, her body temperature slightly decreased to 37.4 degrees Celsius, she had mouth ulcers, and was in good spirits without any more fever. Diagnosed with hand, foot, and mouth disease, it is recommended to use antiviral medication for symptomatic treatment, adhere to the course of treatment, which usually takes three to five days, and regularly check in. At the same time, drink plenty of water and take proper isolation and protection measures to prevent transmission. There are many causes of hand, foot, and mouth disease. If the child is diagnosed with hand, foot, and mouth disease, parents need to cooperate with the doctor for timely treatment, assist with gastrointestinal decompression, and develop good hygiene habits. The child should have a balanced diet and avoid irritating and cold foods.