Children with febrile symptoms and elevated blood tests for C-reactive protein, or CRP, suggest an infectious disease. According to the value of C-reactive protein, clinically you can probably distinguish what pathogenic infection: first, CRP value more than 20-30 mg per deciliter, consider a bacterial infection, need to use antibiotics, such as cephalosporins or penicillins, if allergic to penicillin, cephalosporins available erythromycin or azithromycin instead; second, CRP is elevated, but in less than 20 mg per deciliter, suggests a viral infection, can Take some antiviral drugs, such as ribavirin or antiviral Chinese medicine, if the flu can be oral oseltamivir; third, CRP is very high, more than 100 mg per deciliter, fever accompanied by rash, arthralgia, etc., more need to pay attention to sepsis, Kawasaki disease, children with idiopathic arthritis systemic type, etc., need to use antipyretic and analgesic drugs, if necessary, hormone or immunosuppressive therapy.