The child has a fever 4 days, on the face, red rash begins to appear on the neck, how to do

The child has a fever for four days, and a red rash begins on the face and neck. It is recommended that you first do a good job of skin hygiene care for the child's red rash in the near future, and then give the child more hot water to promote fever. Follow-up needs to find the cause, if it is caused by viral infection, you can follow the doctor's advice to give the child antiviral treatment.