Nursery with a cold?

Hi all, Anyone who works in a nursery or has been here before who could help? My little girl has been pretty congested and coughing at night. She’s much better in the day. She has no temperature, just her voice sounds a bit groggy. Am I ok to send her into nursery? Her nursery have given out exemptions advice for other things but says nothing about the common cold… Thanks in advance!