Children with C-reactive protein as high as 112.5mg/L may need to be alert to the possibility of infection, can be combined with their clinical manifestations for clinical diagnosis, if necessary, empirical use of antibiotics, such as azithromycin, amoxicillin and so on. C-reactive protein is an indicator of infection, if children with high C-reactive protein, suggesting that there may be a possible infection, but may also be related to postoperative, stress and other factors, can be combined with the baby’s clinical manifestations, such as poor mental health, poor breastfeeding, shortness of breath, coughing and other manifestations, if necessary, can be empirical use of antibiotics, such as cefozotoxime and other anti-infective treatment. However, many clinical diseases can cause C-reactive protein increase, such as Kawasaki disease, juvenile idiopathic arthritis and other diseases. If necessary, further examination can be done to find out the cause of the disease, and treatment can be carried out according to the doctor’s instructions.