The baby’s rash in patches may be related to scarlet fever, rubella virus infection, toddler’s emergency rash and other factors, need to clarify the cause of the disease, to be treated. 1. Scarlet fever: if the baby has a rash all over the body, accompanied by headache, high fever, peeling and other symptoms, after diagnosis, you need to choose to use cephalosporin, erythromycin and other antibiotics under the guidance of the doctor for treatment, if there is a fever, you also need to use physical hypothermia, the temperature is more than 38.5 degrees can be taken orally, ibuprofen, acetaminophen and other treatments. 2. Rubella virus infection: Rubella virus infection can also cause fever, but most of them are mainly low fever, accompanied by symptoms of swollen lymph nodes, you can use physical hypothermia, pay attention to bed rest, and be given a liquid or semi-fluid diet. 3. toddler emergency rash: if the toddler emergency rash caused by the above symptoms, usually persistent high fever, in 2~3 days or so the body temperature gradually normalized, and then there will be a rash, the color is mainly rose-colored, after diagnosis need to be given to reduce fever and other symptomatic treatment. In addition, you need to pay attention to the baby’s rash, if it is itchy, try not to let the baby scratch, to avoid cross-infection. It is recommended to consult a doctor in time.