If the baby has a cold, and the fever is mild, you can use mugwort water to bathe. Mugwort water is aromatic and pungent, with the effect of warming the meridian and dispersing cold, activating blood circulation and dispelling dampness, which can remove the cold in the body and accelerate the blood circulation of the baby, and the evaporation of water on the skin during bathing can also lower the body temperature and play a physical cooling effect, which has a certain relief and therapeutic effect on the cold. If the baby has a wind-heat cold and the symptoms of fever are heavy and the body temperature rises above 38.5℃, it is not recommended to bathe with mugwort water. At this time, oral antipyretic drugs such as acetaminophen or ibuprofen should be given as prescribed by the doctor to reduce the temperature. At the same time, assist the whole body warm water bath, or forehead paste anti-fever paste and other physical cooling method, to reduce body temperature, so as to improve the fever symptoms, and at the same time to give the baby to drink more water to replenish water.