Some rashes, such as baby acne, go away by themselves in a matter of weeks or months. You shouldn’t use adult acne medication to treat baby acne. Cradle cap can be treated with topical oil, such as coconut oil, gentle scrubbing with a cradle cap brush, and washing your baby’s head.Can fever cause a rash on a baby?
However, many viruses cause only minor symptoms - perhaps a mild fever or slight cough - but the rash may look quite dramatic. Sometimes the rash appears just as the other symptoms are improving. Most viral infections causing a rash will do no harm to your developing baby.