If a baby has a fever and a red rash, physical cooling can be given to the child in a timely manner, for example, a warm bath can be given to the child to play a cooling effect, the method of taking a warm bath is relatively convenient, easy to implement, the effect is also particularly rapid. If a child’s axillary temperature reaches 38.5°C or higher, acetaminophen drops should be given to the child in a timely manner. In addition, children should be given antiviral medications, because some children have fever and rashes due to viral infections, such as measles virus or rubella virus, etc. At this time, antiviral Chinese medicines such as Qingkailing granules can be applied to deal with the problem. In addition, children should be given penicillin antibiotics such as amoxicillin in a timely manner, because some children’s fever and red rash are caused by scarlet fever, which is caused by Streptococcus haemolyticus, and can be treated with amoxicillin.