Is it normal to still have a cough after getting over pneumonia? Isabelle's last antibiotic dose was…

Is it normal to still have a cough after getting over pneumonia? Isabelle's last antibiotic dose was Sunday morning. All the mucus and stuffiness is gone and the doctor can no longer hear the pneumonia, which means she should be over it. She's completely back to normal, but she still has a little cough, which makes me worried. 😕😕 Is this normal?