Infant’s body temperature of 36.9℃ is a normal temperature and not a fever. If there are symptoms such as nasal congestion, runny nose, sneezing, sore throat, etc., you can take pediatric aminophenol xuanamin granules orally, which can treat and relieve various symptoms caused by cold and flu, such as fever, headache, nasal congestion, runny nose, sneezing, sore throat and so on. Oral Chinese medicines, such as Pu Di Lan Anti-inflammatory Oral Liquid, Blue Scutellaria Oral Liquid, Qing Kai Ling Granules, Ban Lan Gen Granules, Antelope Horn Granules and other heat-clearing and detoxifying medicines can also be taken, as well as treatment through Chinese herbal soup. If it is caused by wind-cold cold, it can be treated by adding subtractions to Jingpangdaepiao Tang, which has the effect of relieving the epidermis with pungent and warmth. If it is caused by wind-heat cold, you can use Yin Qiao San and Onion, Black Bean and Platycodonopsis Soup plus or minus, which has the effect of pungent and cool to remove the exterior. If there is a rise in body temperature, body temperature more than 38.5 ℃, you can take oral ibuprofen suspension, suitable for infants and young children to reduce fever, has the effect of rapid fever reduction.