Children’s resistance is relatively weak, easy to get infected with viruses and bacteria and get sick. When a child is positive for Mycoplasma, usually after symptomatic treatment, it can usually turn from positive to negative in about 1-3 weeks, so it is important to pay attention to active treatment and comprehensive conditioning to promote health. Children’s physique is different, after being infected by mycoplasma, the positive to negative time is also different. Children with milder disease may turn negative in about 1-3 weeks of treatment. However, if the child’s condition is severe and he or she does not cooperate enough with the treatment, the treatment time will be relatively longer, and it may take 2-3 months for the infection to turn negative. Therefore, it is important to cooperate with the treatment, and anti-viral and anti-infection treatment can be carried out, and the medication must follow the doctor’s instructions. If a child is infected with mycoplasma, it is important to treat it as soon as possible. During the period of illness, parents should give the child more nutrition to increase the body’s immunity, but also to urge the child to rest more, all aspects of good care work, in order to make the body recover as soon as possible.