Nine months baby fever 38 degrees may and viral infection, bacterial infection and other factors related to the main physical cooling and medication. 1. Physical cooling: baby fever temperature of 38 ℃, but the mental state is good, and no other adverse reactions, you can take physical cooling treatment, that is, open the clothes to dissipate heat, with a warm towel to wipe the body, or the head of the antipyretic stickers and so on. At the same time, pay attention to drink more warm water, can help the body dissipate heat. 2. medication: if the physical cooling effect is not good, it is recommended to take the baby to the hospital for routine blood tests, clear is a viral infection, generally do not take antiviral medication, if it is a bacterial infection need to be under the guidance of the doctor to take the relevant antibiotic treatment, such as cefixime, amoxicillin and so on. Nine-month-old baby fever of 38 degrees may also have other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.