The work plan for detecting and dealing with scarlet fever in Beijing (for trial implementation) states: ① Treat patients with scarlet fever in isolation as early as possible, for a period of 7 days. Children or students in child care treated in isolation may not resume classes or schools until the disease is cured. Close contacts should be placed under medical observation for 7 days. Pay attention to their body temperature, skin and pharynx, and advise suspicious persons to go to the hospital for examination and treatment.” As each child’s condition is different, the quarantine period needs to be determined by the doctor according to the child’s condition, so be sure to follow up with the doctor at the appointed time, and let the doctor tell you whether the child can resume school or kindergarten.