Hand, foot and mouth disease is an acute infectious disease caused by a variety of intestinal viruses, which can be spread through close contact with people, air droplets, feces, saliva, herpes fluid, etc. Infants and children under 5 years of age are generally susceptible. Most children with the disease can heal on their own in a week or so, and those who cannot heal on their own can also heal after active treatment, but a very small number of seriously ill children have a poor prognosis. Whether HFMD is cured can be judged according to its clinical manifestations and auxiliary examinations. 1. Judgment method of hand, foot and mouth disease healing 1. Judgment according to clinical performance If the child’s herpes crusts on the hands and feet and other parts after a week, the herpes in the mouth improves, no fever, loss of appetite, sore throat and other physical symptoms, or no such symptoms after treatment, it means that hand, foot and mouth disease is healed; 2. Judgment according to auxiliary examination (1) nucleic acid detection: take the child’s oral secretions or take the child’s stool for nucleic acid detection. (2) other tests: if the blood tests are normal, it means that the disease is cured. (2) Prevention of hand, foot and mouth disease 1. Avoid going to public places where people gather and there is no air circulation during the epidemic period; 2. Pay attention to keeping the family environment hygienic, ventilate the living room frequently, and dry clothes and blankets regularly; 3. Pay attention to washing hands before and after meals and avoid eating raw food and drinking raw water; 4. Pay attention to cleaning and disinfecting tableware, children’s toys, personal hygiene utensils and other items; 5.