A 6-month-old baby with a fever of 37.7°C can be treated with physical cooling if it is caused by a cold, or with fluid supplementation if it is caused by a digestive infection. 1. Colds: A fever of 37.7°C in a 6-month-old baby is commonly caused by viral infections, often accompanied by nasal congestion, runny nose, cough and other symptoms. The temperature belongs to the low fever, can take physical cooling such as paste antipyretic paste, loosening clothing and heat dissipation and other treatments, at the same time can be given to the oral anti-inflammatory particles to alleviate the symptoms of cold and flu and other comprehensive treatment. 2. Digestive system infections: infant fever may also be caused by digestive system infections, such as viral diarrhea, bacterial enteritis, accompanied by diarrhea, vomiting and other symptoms, can be given oral rehydration salts rehydration, help to alleviate fever, but also to replenish the loss of water, and according to the cause of the cause of bacterial infections such as caused by the use of antibiotics, such as cefixime treatment. Infants with fever need to consult a doctor in time, under the guidance of the doctor to clarify the cause of the reasonable treatment. The above medications should be used under the guidance of a doctor.