We were discharged this morning. We had an X-ray and the head doctor l…

We were discharged this morning. We had an X-ray and the head doctor listened to us and discharged us. She previously said there was a fever, we came home and there wasn't a fever. Now that she is sleeping, she started coughing (a dry cough). She hasn't coughed for 3-4 days. Previously, there was phlegm and I don't know what to do. Should we call a doctor home?