Erysipelas is a viral infection, but it is not an infectious disease, so the rash is not contagious. This viral infection causes the baby to have a high fever for 3-4 days, after which the temperature gradually goes down. During the process of temperature remission, a rash will appear on the body, mainly on the head, face and trunk, but rarely on the extremities. After the rash appears, the baby’s body temperature will not increase again. During the rash, you can give your baby oral antiviral medication, such as antiviral oral liquid, pediatric oral solution. Then monitor the temperature. If the temperature exceeds 38.5 degrees, you should give your baby oral Tylenol or Merlin to reduce the fever and drink more warm water. If the temperature still rises after the rash, you should promptly take your baby to the hospital for further examination and treatment. During the rash, do not go outside and do not bathe your baby.