3 months old babies with colds are generally treated by symptomatic treatment, as follows: 1, the cold manifested as sneezing, nasal congestion, runny nose and other symptoms, can take pediatric aminophenol xanthamine granules for treatment; 2, nasal congestion, runny nose symptoms are more serious, can be relieved by local nasal medication, clinical can use furosemide nasal drops; 3, the cold manifested as fever symptoms, need to be based on If the child’s body temperature is below 38.5℃, the symptoms can be relieved mainly by applying antipyretic stickers and feeding the child more water, while the child’s body temperature can be physically cooled by taking a warm bath when it is above 38.5℃. 3 months old babies should take antipyretic drugs carefully and follow the doctor’s instructions, and they should not be applied casually, and the symptoms of cold will disappear gradually after 3-7 days of symptomatic treatment.