Two and a half year old babies with a fever of 38.5 degrees, commonly due to pathogenic bacterial infections. The treatment method is mainly divided into symptomatic fever reduction treatment and causative treatment. 1. Symptomatic treatment: baby temperature 38.5 degrees, the general state is good, you can use warm water whole body bath method for physical cooling. At the same time, drink a lot of water, increase the urine discharge to take away the heat. If accompanied by obvious discomfort, you need to take ibuprofen, acetaminophen and other antipyretic drugs as prescribed by the doctor to lower the temperature, to avoid complications such as febrile convulsions. 2. Causal treatment: two and a half year old baby fever is commonly caused by pathogenic bacterial infection of the upper respiratory tract infection, pneumonia, acute enteritis and other diseases, in the fever at the same time should be actively treating the cause. According to the type of pathogenic bacteria infection to choose the appropriate drug treatment, such as the existence of bacterial infection can be given amoxicillin clavulanate potassium, cefixime and other antibiotic treatment as prescribed by the doctor. Two and a half year old baby fever 38.5 degrees can also be seen in other factors, it is recommended to consult a doctor in a timely manner, clear the cause of the standardized treatment in accordance with the doctor’s instructions, do not unauthorized use of drugs.