Three-month-old babies born with liver function impairment, may be caused by EBV infection, infant hepatitis syndrome and other causes group, you can use general treatment, coenzyme Q10 and other medication to improve. 1. EBV infection: often manifested as fever, enlarged lymph nodes, sore throat and other symptoms, some of the children can appear liver function damage, at this time you can use coenzyme Q10 and other liver drugs symptomatic treatment. Ibuprofen can be used when the fever is high, and physical cooling should be strengthened at the same time. 2. Infantile hepatitis syndrome: cytomegalovirus infection, rubella virus can lead to infantile hepatitis syndrome, cholestasis to impair liver function, ursodeoxycholic acid to help eliminate cholestasis, and at the same time with glutathione and other liver protection drugs for symptomatic treatment. There are other causes of liver function impairment in infants, such as hepatitis B, etc. It is recommended to consult a doctor in time to find out the cause of the impairment and treat it accordingly. All of the above medications should be used under doctor’s supervision, avoid self-medication.